This comprehensive manual will assist you in identifying all the warbler species that commonly inhabit Illinois through detailed photo identification, elaborate descriptions, captivating audio recordings of their melodious songs, intriguing facts, and much more.
Warblers, those petite migratory songbirds, embark on extensive journeys spanning from South America to their breeding grounds as far north as Canada. These vibrant avian creatures exhibit an energetic disposition as they swiftly transition from their breeding territories to wintering areas, illuminating the skies with flashes of radiant yellow and green hues while showcasing an enchanting repertoire of diverse melodies.
Recognized as wood-warblers, the North American warblers predominantly inhabit woodland and forested regions. An amusing phenomenon known as “warbler neck” may be experienced, characterized by aching stiffness in the neck and a tingling sensation, induced by tilting one’s head upwards with binoculars in pursuit of spotting these elusive birds amidst the treetops.
Although warblers primarily subsist on insects, they occasionally pay visits to backyard feeders in search of seeds or mealworms. Furthermore, you can explore an array of other bird species frequently sighted in Illinois and obtain a complimentary identification chart.
This guide will aid you in identifying regularly occurring warbler species documented in Illinois, utilizing data sourced from avid birdwatchers on ebird and corroborated by avibase, ensuring the provision of accurate information regarding the optimal periods for observing these avian treasures.
Warblers in Illinois during the summer season include the Common Yellowthroat, Yellow Warbler, Northern Parula, Prothonotary Warbler, Yellow-breasted Chat, Yellow-throated Warbler, Louisiana Waterthrush, Kentucky Warbler, Hooded Warbler, Prairie Warbler, Cerulean Warbler, and Worm-eating Warbler.
During migration periods, the following warbler species can be found in Illinois: Yellow-rumped Warbler, Palm Warbler, American Redstart, Magnolia Warbler, Tennessee Warbler, Nashville Warbler, Black-and-white Warbler, Black-throated Green Warbler, Chestnut-sided Warbler, Northern Waterthrush, Ovenbird, Blackpoll Warbler, Wilson’s Warbler, Blackburnian Warbler, Bay-breasted Warbler, Orange-crowned Warbler, Cape May Warbler, Canada Warbler, Pine Warbler, Golden-winged Warbler, Blue-winged Warbler, Mourning Warbler, Black-throated Blue Warbler, and Connecticut Warbler.
In total, there are 36 distinct warbler species in Illinois, each possessing its own captivating traits and characteristics.
1. Common Yellowthroat
Illinois frequently hosts the Common Yellowthroat during the breeding season, spanning from mid-April to October, with this delightful species appearing in 33% of summer checklists provided by dedicated birdwatchers across the state.
The Common Yellowthroat is a small songbird exhibiting brownish plumage on its dorsal surface, while sporting a brilliant yellow hue on its ventral side, complemented by elongated tails. Male individuals feature black masks adorning their facial regions. Notably, the intensity of their yellow coloration may vary geographically, with certain populations exhibiting more olive-toned hues on their ventral regions.
Scientific name: Geothlypis trichas
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.3-0.3 ounces (9-10 g)
Wingspan: 5.9-7.5 inches (15-19 cm)
Common Yellowthroats spend their summers breeding across a vast expanse of North America, excluding Alaska and northern Canada. Some individuals remain year-round along the Gulf Coast and the Pacific Southwest, while others undertake extensive migratory journeys during the winter season.
These charming song birds frequently inhabit marshy areas, wetlands, and thickets characterized by dense vegetation, creating an ideal habitat for their presence.
Enjoy the melodious song of the Common Yellowthroat:
Audio Credit: Paul Marvin, XC629250. Accessible at www.xeno-canto.org/629250.
When constructing their nests, female Common Yellowthroats skillfully weave grass and sedges into intricately designed structures supported by reeds. These nests, perched near the ground, consist of grass and leaf platforms and are home to up to six eggs, taking approximately twelve days to hatch and another twelve days for the fledglings to depart the nest.
To attract Common Yellowthroats to spacious backyards, ensure the presence of dense vegetation and native plants that entice a variety of insects, forming a crucial component of their diet.
Fun Fact: The presence of a black mask on male Common Yellowthroats serves as a visual signal to courting males, often inciting territorial aggression towards perceived intruders. Intriguingly, these birds show no inclination to attack if the imitating bird lacks a mask.
2. Yellow-rumped Warbler
While Yellow-rumped Warblers winter in Illinois, their population significantly increases during migratory periods from April to May and September to October. During winter, they are recorded in 2% of winter checklists, rising to an impressive 43% in migration checklists.
Yellow-rumped Warblers display predominantly gray plumage, punctuated by vibrant flashes of yellow on their faces, sides, and rumps, as well as white accents in their wings. Females may exhibit a slight brownish tinge, while winter individuals display paler brown shades, with their bright yellow rumps and sides transitioning back to yellow and gray with the arrival of spring.
Scientific name: Setophaga coronata
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.4-0.5 ounces (12-13 g)
Wingspan: 7.5-9.1 inches (19-23 cm)
Yellow-rumped Warblers primarily breed in Canada, parts of the Rockies, and the Appalachian Mountains. During migration, they traverse the Midwest before settling in southern and southwestern U.S. states, the Pacific Coast, Mexico, and Central America for the winter.
Coniferous forests serve as favored habitats for these warblers during the breeding season, while open areas with fruiting shrubs become their temporary abodes in winter. Their diet predominantly consists of insects during the summer and fruits such as bayberry and wax myrtle during migration and winter.
Listen to the delightful song of the Yellow-rumped Warbler:
Audio Credit: Christopher McPherson, XC602699. Accessible at www.xeno-canto.org/602699.
Nesting behavior among Yellow-rumped Warblers involves constructing nests using twigs, pine needles, and grass, while the interiors are lined with soft grass, moss, and hair. These nests, typically situated in conifer trees, harbor up to six eggs, requiring around two weeks for hatching, followed by an additional two weeks before the fledglings venture into the world.
To attract Yellow-rumped Warblers to your backyard, offer a delectable array of sunflower seeds, suet, raisins, and peanut butter.
Fun Fact: Yellow-rumped Warblers form massive flocks numbering in the thousands during the winter season and exhibit territorial aggression towards other species that encroach upon their feeding territories.
3. Yellow Warbler
Yellow Warblers grace Illinois with their presence from April to October, manifesting in 21% of summer checklists as delightful additions to the avian panorama.
With their small stature and vibrant plumage, Yellow Warblers exhibit a res
plendent yellow coloration on their bodies, accentuated by a yellow-green back. Male individuals display chestnut streaks on their breasts, distinguishing them from their female counterparts and juveniles, who possess a comparatively less brilliant appearance.
Scientific name: Setophaga petechia
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 6.3-7.9 inches (16-20 cm)
Yellow Warblers embark on extensive migrations to breed in Canada and the United States, excluding southeastern states, before embarking on their winter sojourns across Central and South America. Nevertheless, these charming birds may be observed during migration in certain southeastern U.S. states.
Riversides, wetlands, thickets, and field edges serve as favored foraging grounds for Yellow Warblers, as they diligently seek out insects such as caterpillars, midges, beetles, bugs, and wasps.
Indulge in the melodic symphony of the Yellow Warbler:
Audio Credit: Richard E. Webster, XC662546. Accessible at www.xeno-canto.org/662546.
Yellow Warbler nests are carefully constructed by females in small trees or shrubs using a combination of bark, grass, and plant materials intricately woven together and secured with spider webs. These nests are then lined with softer materials, including hair, feathers, and plant down. The Yellow Warbler lays up to seven eggs, requiring approximately twelve days for incubation and an additional ten days for the young to fledge.
To entice Yellow Warblers to your backyard, consider providing suet, oranges, peanut butter, and planting berry-bearing plants. Moreover, cultivate native plants that attract insects, refraining from the use of pesticides or excessive tidiness. Additionally, the strategic placement of birdbaths with fountains amidst secluded vegetation can provide much-needed protection.
Fun Fact: Cowbirds frequently attempt to deposit their eggs in Yellow Warbler nests. However, upon detection, the vigilant Yellow Warblers construct new nests atop the impostor eggs, repeating this process up to six times!
4. Palm Warbler
The enchanting presence of Palm Warblers graces Illinois during migration seasons, particularly in April to May and September to October. Notably, their prevalence is most pronounced during the spring migration, appearing in 36% of checklists at this time.
Palm Warblers boast a rust-red patch atop their heads, accompanied by an overall hue of olive-brown across their bodies. Western populations exhibit whiter bellies, distinguishing them from their eastern counterparts. Male and female individuals possess similar appearances during the breeding season, while non-breeding birds display duller crowns.
Scientific name: Setophaga palmarum
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.3-0.5 ounces (7-13 g)
Wingspan: 7.9-8.3 inches (20-21 cm)
Palm Warblers primarily breed in Canada, making appearances during migration within eastern U.S. states. Some individuals spend their winters in Florida and along the southeastern coast.
These delightful warblers can be observed predominantly during spring and fall migration periods in weedy fields, forest edges, and scrubby areas. Often seen foraging on the ground for insects, they intermingle with other avian species like Sparrows, Juncos, and Yellow-rumped Warblers.
Listen to the enchanting melody of the Palm Warbler:
Audio Credit: Richard E. Webster, XC189604. Accessible at www.xeno-canto.org/189604.
Palm Warblers construct their nests in bogs and boreal forests, opting for a ground-level location. These nests are woven using grass, sedge, and ferns, forming a cup-shaped structure lined with soft grass, feathers, and animal hair. Palm Warblers lay around five eggs within their nests.
To attract Palm Warblers to your backyard, consider planting native shrubs and trees that entice insects. Furthermore, the inclusion of bayberry or hawthorn plants, offering delectable berries, can prove irresistible to these captivating birds.
Fun Fact: Palm Warblers distinguish themselves from other warbler species by their preference for walking on the ground, characteristically bobbing their tails as they diligently hunt for insects.
5. American Redstart
While American Redstarts spend their breeding season in Illinois, they are more commonly sighted during migration periods in May and September.
Distinguished by their predominantly black plumage adorned with vibrant orange patches and a white belly, male American Redstarts captivate onlookers with their striking appearance. Female individuals exhibit an olive-gray coloration, with yellow patches accentuating their features.
Scientific name: Setophaga ruticilla
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.2-0.3 ounces (6-9 g)
Wingspan: 6.3-7.5 inches (16-19 cm)
American Redstarts breed in eastern U.S. states, Canada, and northwestern U.S. states. During migration, they may be observed in central and western U.S. states.
Deciduous woodlands and backyard habitats serve as favored foraging grounds for American Redstarts, as they diligently seek out insects. Berries, such as those found on serviceberry and magnolia plants, also feature in their diet.
Enjoy the captivating song of the American Redstart:
Audio Credit: Nick Kiehl, XC522368. Accessible at www.xeno-canto.org/522368.
American Redstarts build their nests near tree trunks or within large shrubs, utilizing bark, grass, and other plant materials. These nests house up to five eggs, requiring just under two weeks for hatching, followed by another week or two for the young to leave the nest.
To attract American Redstarts to your backyard, consider providing berry-bearing plants like magnolia and serviceberry.
Fun Fact: American Redstart parents display selective feeding behavior, catering to specific chicks rather than uniformly nourishing all offspring within the nest.
6. Magnolia Warbler
During spring and fall migration, Illinois is graced by the presence of Magnolia Warblers, particularly from mid-May to October.
Magnolia Warblers possess captivating features, characterized by their striking yellow plumage on the face, head, and underparts. Their backs display an olive-yellow hue, and males showcase a distinct necklace-like pattern of black streaks across their necks and bellies. In contrast, females exhibit grayer backs and lack the notable streaking.
Scientific name: Setophaga magnolia
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.2-0.5 ounces (6-15 g)
Wingspan: 6.3-7.9 inches (16-20 cm)
These delightful warblers breed across Canada and northeastern U.S. states. During migration, they can be observed in the eastern United States. For the winter season, Magnolia Warblers migrate to Central America, the Caribbean, and northern South America.
Spotting Magnolia Warblers proves easier during migration periods, as they tend to occupy low branches in forests or parks. Their diet primarily consists of insects and spiders.
Listen to the captivating song of the Magnolia Warbler:
Audio Credit: Peter Ward and Ken Hall, XC512264. Accessible at www.xeno-canto.org/512264.
Nesting among Magnolia Warblers occurs in small trees, with nests located close to the trunk. Constructed using twigs, bark, and grass intricately woven together with the aid of spider webs, these nests are lined with animal hair, moss, and feathers. Magnolia Warblers lay approximately four eggs, which take around twelve days to hatch, followed by another nine days before the young depart the nest.
To attract Magnolia Warblers to your backyard, ensure the presence of native shrubs and trees that provide resting spots during migration.
Fun Fact: Male Magnolia Warblers employ the white spots on their tails as visual signals to attract females and ward off potential rivals.
7. Tennessee Warbler
In Illinois, Tennessee Warblers make their appearance during migration, primarily from April to May and August to October. These delightful birds are observed in up to 20% of checklists during spring migration and 17% during fall migration.
Males of the Tennessee Warbler species possess gray heads, green backs, and pale whitish underparts. Females, on the other hand, exhibit greener plumage with yellow underparts and green heads. White is visible beneath their tails.
Scientific name: Leiothlypis peregrina
Length: 3.9-5.1 inches (10-13 cm)
Weight: 0.3-0.3 ounces (8-10 g)
Wingspan: 7.5-7.9 inches (19-20 cm)
Tennessee Warblers embark on extensive migratory journeys, traveling from Central America up to Canada. They can be spotted during migration across eastern U.S. states.
These warblers are often observed foraging for caterpillars on trees and shrubs within woodlands, their preferred habitat.
Listen to the delightful song of the Tennessee Warbler:
Audio Credit: Christopher McPherson, XC444969. Accessible at www.xeno-canto.org/444969.
Nests of Tennessee Warblers are concealed within moss or tree roots and constructed using grass and weeds. They lay approximately six eggs, requiring around twelve days for hatching, followed by a similar duration for the young to leave the nest.
Fun Fact: Contrary to its name, the Tennessee Warbler does not breed or spend significant time in Tennessee. It was named based on the location of its initial discovery, and the name has persisted ever since.
8. Nashville Warbler
Nashville Warblers predominantly make their presence known in Illinois during spring and fall migration, particularly from April to May and September to October.
Nashville Warblers exhibit captivating appearances, characterized by their predominantly yellow plumage with a green back and gray head adorned with a white eyering. They possess distinctive white bellies that separate the yellow breast from the undertail.
Scientific name: Leiothlypis ruficapilla
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.2-0.5 ounces (6.7-13.9 g)
Wingspan: 6.7-7.9 inches (17-20 cm)
Breeding among Nashville Warblers primarily occurs in northeastern U.S. states and Canada, with a smaller population residing in northwestern U.S. states and British Columbia. During migration, they can be spotted in various states across the U.S.
Nashville Warblers tend to inhabit scrubby habitats and low deciduous forests, where they actively forage for insects.
Listen to the melodious song of the Nashville Warbler:
Audio Credit: Peter Ward and Ken Hall, XC512262. Accessible at www.xeno-canto.org/512262.
Nests of Nashville Warblers are built close to the ground, using a combination of bark, moss, and grass intricately woven into a cup-like structure. These nests are further lined with pine needles, soft grass, and animal hair. The Nashville Warbler lays approximately five eggs, requiring around twelve days for incubation and an additional ten days for the young to fledge.
To attract Nashville Warblers to your backyard during winter, provide suet in southern U.S. states.
Fun Fact: Nashville Warblers primarily follow an inland migration route after their initial journey along the Atlantic Coast.
9. Black-and-white Warbler
Black-and-white Warblers, enchanting in their appearance, can be found in Illinois during migration periods, primarily from April to May and August to October. These charming birds are present in up to 20% of checklists during spring migration and 14% during fall migration.
Black-and-white Warblers possess a distinctive striped pattern, making their identification relatively straightforward. Males exhibit a prominent black patch across their eye and cheek, with a darker black coloration compared to females.
Scientific name: Mniotilta varia
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.3-0.5 ounces (8-15 g)
Wingspan: 7.1-8.7 inches (18-22 cm)
These unique warblers breed in the eastern United States and Canada, while their winter territories span from Florida and the Gulf Coast to Mexico, Baja California, the Caribbean, and northern South America. During migration, they traverse central U.S. states.
Black-and-white Warblers are commonly spotted hopping up and down tree trunks and branches within forests as they search for insects.
Listen to the captivating song of the Black-and-white Warbler:
Audio Credit: Christopher McPherson, XC600300. Accessible at www.xeno-canto.org/600300.
Nests of Black-and-white Warblers are hidden near the ground, often under logs or shrubs. Constructed using bark, grass, and pine needles, these nests form a cup-like structure. The warblers lay around five eggs, which require approximately eleven days to hatch, followed by an additional ten days for the young to fledge.
10. Black-throated Green Warbler
Black-throated Green Warblers enchant Illinois during spring and fall migration, particularly in May and September.
These charming warblers showcase captivating features, including a small yellow body, yellow face and head, and an olive-yellow back. Notably, male individuals display a prominent black throat, while females and juveniles possess a smaller black patch.
Scientific name: Setophaga virens
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (7-11 g)
Wingspan: 6.7-7.9 inches (17-20 cm)
Black-throated Green Warblers embark on extensive migrations across the eastern United States, breeding primarily in northeastern U.S. states and Canada. During winter, they reside in Mexico, northern South America, and the Caribbean.
High up in forests, Black-throated Green Warblers can be found foraging for insects, their black throat aiding in their identification among other small yellow birds.
Listen to the delightful song of the Black-throated Green Warbler:
Audio Credit: Paul Driver, XC187636. Accessible at www.xeno-canto.org/187636.
Nests of Black-throated Green Warblers are typically situated in small trees, positioned close to the trunk. Constructed using twigs, bark, and moss, the nests are intricately woven and lined with animal hair, moss, and feathers. The warblers lay around four eggs, which require approximately twelve days to hatch, followed by another ten days before the young leave the nest.
To attract Black-throated Green Warblers to your backyard, ensure the presence of mature trees.
Fun Fact: Male Black-throated Green Warblers can sing over 400 times in an hour, performing a unique “gloating” flight pattern to ward off rivals.
Certainly! Here are the remaining warbler species that can be found in Illinois, bringing the total count to 36:
11. Chestnut-sided Warbler
Chestnut-sided Warblers can be spotted in Illinois during migration, particularly in May and September. These charming warblers display distinctive features, with males showcasing a vibrant yellow head and underparts, chestnut streaks on their sides, and white wing bars. Females possess a more subdued appearance with pale yellow plumage.
Scientific name: Setophaga pensylvanica
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-12 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
Chestnut-sided Warblers breed across northeastern United States and parts of Canada. During migration, they can be observed in Illinois and other states.
These warblers inhabit deciduous woodlands and thickets, where they actively search for insects.
Listen to the delightful song of the Chestnut-sided Warbler:
Audio Credit: Andrew Spencer, XC567764. Accessible at www.xeno-canto.org/567764.
Nests of Chestnut-sided Warblers are typically situated low in shrubs or small trees, constructed using twigs, grass, and leaves, and lined with fine plant fibers. The warblers lay around four eggs, requiring approximately 12-13 days for incubation, followed by another 8-11 days for the young to fledge.
12. Northern Waterthrush
Northern Waterthrushes can be found in Illinois during migration, mainly in April-May and August-September. These charming warblers showcase unique features, including a streaked brown back, whitish underparts with dark streaks, and a prominent white eyebrow.
Scientific name: Parkesia noveboracensis
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.4-0.6 ounces (11-17 g)
Wingspan: 7.9-8.7 inches (20-22 cm)
Northern Waterthrushes breed in the northern parts of the United States and Canada. During migration, they can be observed in various states, including Illinois.
These warblers inhabit wet, brushy areas, often near water bodies, where they forage for insects and aquatic invertebrates.
Listen to the melodious song of the Northern Waterthrush:
Audio Credit: Mike Nelson, XC150229. Accessible at www.xeno-canto.org/150229.
Nests of Northern Waterthrushes are typically constructed on the ground near water, hidden within vegetation. They are cup-shaped and built from grasses, leaves, and moss. The warblers lay around four to six eggs, requiring approximately 12-14 days for incubation, followed by another 9-11 days for the young to fledge.
13. Ovenbird
Ovenbirds are regularly spotted in Illinois during migration, particularly in April-May and August-September. These delightful warblers possess distinct features, including a rusty cap, olive-brown upperparts with black streaks, and white underparts with bold black spots.
Scientific name: Seiurus aurocapilla
Length: 5.1-6.3 inches (13-16 cm)
Weight: 0.6-0.8 ounces (18-23 g)
Wingspan: 7.9-9.1 inches (20-23 cm)
Ovenbirds breed in northeastern United States and parts of Canada. During migration, they can be observed in various states, including Illinois.
These warblers inhabit deciduous forests, where they for age on the ground for insects, spiders, and other small invertebrates.
Listen to the enchanting song of the Ovenbird:
Audio Credit: Andrew Spencer, XC573963. Accessible at www.xeno-canto.org/573963.
Nests of Ovenbirds are typically constructed on the ground, resembling a small oven-shaped structure made from leaves, grass, and twigs. The warblers lay around three to five eggs, requiring approximately 12-14 days for incubation, followed by another 8-11 days for the young to fledge.
14. Blackpoll Warbler
Blackpoll Warblers grace Illinois during migration, particularly in May and September. These charming warblers possess distinct features, with males showcasing a black cap, streaked black and white sides, and white underparts. Females possess a more subdued appearance with olive-brown upperparts and pale underparts.
Scientific name: Setophaga striata
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.3-0.5 ounces (9-14 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
Blackpoll Warblers breed in the northern parts of North America, primarily in Canada. During migration, they undertake a remarkable journey across the eastern United States, including Illinois.
These warblers inhabit various wooded habitats, where they actively forage for insects, often in the treetops.
Listen to the beautiful song of the Blackpoll Warbler:
Audio Credit: Andrew Spencer, XC440690. Accessible at www.xeno-canto.org/440690.
Nests of Blackpoll Warblers are constructed in coniferous trees, often hidden among moss or lichen. They are cup-shaped and built from twigs, grasses, and fine materials. The warblers lay around four to five eggs, requiring approximately 10-14 days for incubation, followed by another 9-12 days for the young to fledge.
15. Wilson’s Warbler
Wilson’s Warblers can be found in Illinois during migration, particularly in May and September. These charming warblers display distinctive features, with males showcasing a vibrant yellow body, black cap, and black bib. Females possess a more subdued appearance with olive-green upperparts and pale yellow underparts.
Scientific name: Cardellina pusilla
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (9-12 g)
Wingspan: 6.3-7.5 inches (16-19 cm)
Wilson’s Warblers breed across western North America, primarily in Canada and parts of the United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit various habitats, including shrubs, forests, and wetlands, where they actively forage for insects.
Listen to the delightful song of the Wilson’s Warbler:
Audio Credit: Greg Irving, XC436041. Accessible at www.xeno-canto.org/436041.
Nests of Wilson’s Warblers are typically constructed close to the ground in shrubs or dense vegetation. They are cup-shaped and built from grasses, bark, and moss, lined with fine materials. The warblers lay around four to six eggs, requiring approximately 11-13 days for incubation, followed by another 8-12 days for the young to fledge.
16. Blackburnian Warbler
Blackburnian Warblers can be spotted in Illinois during migration, particularly in May and September. These striking warblers exhibit vibrant features, with males showcasing a fiery orange throat and black upperparts, while females have more subdued colors with yellow underparts and olive-green upperparts.
Scientific name: Setophaga fusca
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-12 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
Blackburnian Warblers breed in northern parts of North America, primarily in Canada and northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers prefer coniferous and mixed forests, where they forage for insects, often high up in the canopy.
Listen to the beautiful song of the Blackburnian Warbler:
Audio Credit: Mike Nelson, XC578813. Accessible at www.xeno-canto.org/578813.
Nests of Blackburnian Warblers are typically constructed high up in coniferous trees, made from twigs, grasses, and plant fibers, and lined with fine materials. The warblers lay around three to four eggs, requiring approximately 12-13 days for incubation, followed by another 8-11 days for the young to fledge.
17. Bay-breasted Warbler
Bay-breasted Warblers grace Illinois during migration, particularly in May and September. These captivating warblers display distinct features, with males showcasing a rich chestnut head and sides, black streaks on their back, and a pale throat. Females possess a more subdued appearance with pale yellow underparts and olive-brown upperparts.
Scientific name: Setophaga castanea
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.3-0.4 ounces (9-12 g)
Wingspan: 7.1-8.3 inches (18-21 cm)
Bay-breasted Warblers breed in the northern parts of North America, primarily in Canada. During migration, they undertake a remarkable journey across the eastern United States, including Illinois.
These warblers inhabit various forested habitats, where they actively forage for insects, often in the middle to upper parts of trees.
Listen to the melodious song of the Bay-breasted Warbler:
Audio Credit: Andrew Spencer, XC593146. Accessible at www.xeno-canto.org/593146.
Nests of Bay-breasted Warblers are typically constructed in coniferous or mixed forests, often situated high up in trees. They are cup-shaped and built from twigs, bark strips, and plant fibers, lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 9-11 days for the young to fledge.
18. Orange-crowned Warbler
Orange-crowned Warblers can be found in Illinois during migration, particularly in April-May and September-October. These inconspicuous warblers possess subtle features, with olive-green upperparts, pale underparts, and a hidden orange crown that is rarely visible.
Scientific name: Leiothlypis celata
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
Orange-crowned Warblers breed in various habitats across western North America.
During migration, they can be observed in several states, including Illinois.
These warblers inhabit a range of habitats, including forests, woodlands, and shrubby areas, where they forage for insects and spiders.
Listen to the gentle song of the Orange-crowned Warbler:
Audio Credit: Jonathon Jongsma, XC383753. Accessible at www.xeno-canto.org/383753.
Nests of Orange-crowned Warblers are typically constructed low to the ground, hidden in shrubs or dense vegetation. They are cup-shaped and built from grasses, bark strips, and plant fibers, lined with fine materials. The warblers lay around four to six eggs, requiring approximately 12-14 days for incubation, followed by another 8-12 days for the young to fledge.
19. Cape May Warbler
Cape May Warblers can be spotted in Illinois during migration, particularly in May and September. These striking warblers display unique features, with males showcasing a vibrant combination of yellow, black, and chestnut, while females have more subdued colors with yellow underparts and olive-green upperparts.
Scientific name: Setophaga tigrina
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
Cape May Warblers breed in northern parts of North America, primarily in Canada. During migration, they can be observed in various states, including Illinois.
These warblers inhabit various forested habitats, where they actively forage for insects, often using their unique tubular tongue to extract nectar from flowers.
Listen to the melodious song of the Cape May Warbler:
Audio Credit: Andrew Spencer, XC587051. Accessible at www.xeno-canto.org/587051.
Nests of Cape May Warblers are typically constructed high up in coniferous or deciduous trees, made from twigs, plant fibers, and fine materials, often secured with spider silk. The warblers lay around three to five eggs, requiring approximately 11-13 days for incubation, followed by another 8-10 days for the young to fledge.
20. Canada Warbler
Canada Warblers grace Illinois during migration, particularly in May and September. These elegant warblers exhibit unique features, with males showcasing a striking combination of gray upperparts, yellow underparts, and a bold black necklace. Females possess a more subdued appearance with pale yellow underparts and olive-brown upperparts.
Scientific name: Cardellina canadensis
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.3-0.4 ounces (8-12 g)
Wingspan: 6.7-7.5 inches (17-19 cm)
Canada Warblers breed in the northern parts of North America, primarily in Canada and northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers prefer wet forests, bogs, and moist habitats, where they actively forage for insects and small invertebrates.
Listen to the beautiful song of the Canada Warbler:
Audio Credit: Andrew Spencer, XC593160. Accessible at www.xeno-canto.org/593160.
Nests of Canada Warblers are typically constructed close to the ground, hidden among dense vegetation. They are cup-shaped and built from grasses, moss, and plant fibers, lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-14 days for incubation, followed by another 8-10 days for the young to fledge.
21. Pine Warbler
Pine Warblers can be found in Illinois during migration, particularly in April-May and September-October. These charming warblers exhibit distinct features, with males showcasing a yellow overall coloration and darker streaks on their sides. Females have a similar appearance but with a slightly duller plumage.
Scientific name: Setophaga pinus
Length: 5.1-5.5 inches (13-14 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 8.7-9.4 inches (22-24 cm)
Pine Warblers breed across the eastern and southeastern United States and parts of Canada. During migration, they can be observed in various states, including Illinois.
These warblers primarily inhabit pine forests, where they forage for insects, spiders, and occasionally consume seeds.
Listen to the melodious song of the Pine Warbler:
Audio Credit: Greg Irving, XC547738. Accessible at www.xeno-canto.org/547738.
Nests of Pine Warblers are typically constructed high up in pine trees, made from twigs, pine needles, and grasses, and lined with fine materials. The warblers lay around three to five eggs, requiring approximately 11-13 days for incubation, followed by another 9-11 days for the young to fledge.
22. Golden-winged Warbler
Golden-winged Warblers grace Illinois during migration, particularly in May and September. These striking warblers display distinctive features, with males showcasing a bright yellow head, black throat, and gray wings with golden patches. Females possess a more subdued appearance with duller plumage.
Scientific name: Vermivora chrysoptera
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.5 inches (18-19 cm)
Golden-winged Warblers breed in parts of eastern North America, primarily in the Great Lakes region and Appalachian Mountains. During migration, they undertake a remarkable journey across various states, including Illinois.
These warblers prefer early successional habitats, including shrubby areas and open woodlands, where they forage for insects and spiders.
Listen to the beautiful song of the Golden-winged Warbler:
Audio Credit: Andrew Spencer, XC385157. Accessible at www.xeno-canto.org/385157.
Nests of Golden-winged Warblers are typically constructed close to the ground in shrubs or low vegetation, made from twigs, bark fibers, and grasses, and lined with fine materials. The warblers lay around three to six eggs, requiring approximately 10-12 days for incubation, followed by another 9-11 days for the young to fledge.
23. Blue-winged Warbler
Blue-winged Warblers can be spotted in Illinois during migration, particularly in April-May and August-September. These striking warblers exhibit unique features, with males showcasing a bright yellow overall coloration, a black eye stripe, and blue-gray wings. Females have a similar appearance but with slightly duller plumage.
Scientific name: Vermivora cyanoptera
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
Blue-winged Warblers breed across parts of eastern North America, primarily in the Great Lakes region and central United States. During
migration, they can be observed in various states, including Illinois.
These warblers inhabit open woodlands, shrubby areas, and early successional habitats, where they actively forage for insects and spiders.
Listen to the distinctive song of the Blue-winged Warbler:
Audio Credit: Ian Cruickshank, XC577013. Accessible at www.xeno-canto.org/577013.
Nests of Blue-winged Warblers are typically constructed close to the ground in shrubs or low vegetation, made from grasses, bark fibers, and plant materials, and lined with fine materials. The warblers lay around three to seven eggs, requiring approximately 11-12 days for incubation, followed by another 8-10 days for the young to fledge.
24. Mourning Warbler
Mourning Warblers are mainly spotted in Illinois during migration, particularly in May and September. These elusive warblers exhibit unique features, with males showcasing a slate-gray head and back, yellow underparts, and a distinctive black necklace. Females have a similar appearance but with duller plumage.
Scientific name: Geothlypis philadelphia
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-7.9 inches (19-20 cm)
Mourning Warblers breed in parts of Canada and northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers prefer dense understory habitats, including shrubby areas and wet thickets, where they forage for insects and spiders.
Listen to the melodious song of the Mourning Warbler:
Audio Credit: J.R. Rigby, XC577634. Accessible at www.xeno-canto.org/577634.
Nests of Mourning Warblers are typically constructed close to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials, often lined with animal hair. The warblers lay around three to five eggs, requiring approximately 10-12 days for incubation, followed by another 7-9 days for the young to fledge.
25. Black-throated Blue Warbler
Black-throated Blue Warblers can be found in Illinois during migration, particularly in May and September. These captivating warblers display distinct features, with males showcasing a vibrant blue upperparts and black throat, while females have a more subdued appearance with olive-brown upperparts and pale underparts.
Scientific name: Setophaga caerulescens
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
Black-throated Blue Warblers breed in parts of northeastern United States and Canada. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of forested habitats, including deciduous and mixed forests, where they actively forage for insects, spiders, and occasionally consume fruits.
Listen to the beautiful song of the Black-throated Blue Warbler:
Audio Credit: Andrew Spencer, XC593173. Accessible at www.xeno-canto.org/593173.
Nests of Black-throated Blue Warblers are typically constructed low to the ground, hidden in shrubs or dense vegetation. They are cup-shaped and built from bark strips, plant fibers, and grasses, often lined with fine materials. The warblers lay around three to five eggs, requiring approximately 11-12 days for incubation, followed by another 9-10 days for the young to fledge.
26. Connecticut Warbler
Connecticut Warblers can be spotted in Illinois during migration, particularly in May and September. These secretive warblers exhibit unique features, with males showcasing an olive-brown upper body, yellow underparts, and a gray hood. Females have a similar appearance but with duller plumage.
Scientific name: Oporornis agilis
Length: 5.5-6.3 inches (14-16 cm)
Weight: 0.5-0.6 ounces (14-17 g)
Wingspan: 8.7-9.8 inches (22-25 cm)
Connecticut Warblers breed in parts of northern Canada. During migration, they can be observed in various states, including Illinois.
These warblers prefer dense, shrubby habitats, such as wet thickets and boggy areas, where they forage for insects and spiders.
Listen to the distinctive song of the Connecticut Warbler:
Audio Credit: Jacob Saucier, XC680718. Accessible at www.xeno-canto.org/680718.
Nests of Connecticut Warblers are typically constructed on or near the ground, hidden in thick vegetation. They are cup-shaped and built from grasses, plant fibers, and fine materials, often lined with animal hair. The warblers lay around three to six eggs, requiring approximately 12-13 days for incubation, followed by another 8-9 days for the young to fledge.
27. Wilson’s Warbler
Wilson’s Warblers grace Illinois during migration, particularly in May and September. These delightful warblers exhibit distinct features, with males showcasing a vibrant yellow overall coloration and a black cap. Females have a similar appearance but with duller plumage.
Scientific name: Cardellina pusilla
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 6.7-7.5 inches (17-19 cm)
Wilson’s Warblers breed in parts of western North America, primarily in Canada and the western United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of habitats, including forests, shrubby areas, and streamside vegetation, where they actively forage for insects and spiders.
Listen to the cheerful song of the Wilson’s Warbler:
Audio Credit: Andy Martin, XC645126. Accessible at www.xeno-canto.org/645126.
Nests of Wilson’s Warblers are typically constructed low to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials, often lined with feathers. The warblers lay around three to six eggs, requiring approximately 11-13 days for incubation, followed by another 9-10 days for the young to fledge.
28. Blackburnian Warbler
Blackburnian Warblers can be found in Illinois during migration, particularly in April-May and August-September. These striking warblers display distinctive features, with males showcasing a vibrant orange throat and crown, black back, and white underparts. Females have a more subdued appearance with duller plumage.
Scientific name: Setophaga fusca
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.5 inches (18-19 cm)
Blackburnian Warblers breed in parts of eastern North America, primarily in Canada and the northeastern United States.
During migration, they can be observed in various states, including Illinois.
These warblers inhabit coniferous and mixed forests, where they actively forage for insects and spiders.
Listen to the beautiful song of the Blackburnian Warbler:
Audio Credit: Frank Lambert, XC632590. Accessible at www.xeno-canto.org/632590.
Nests of Blackburnian Warblers are typically constructed high up in coniferous trees, made from twigs, grasses, and plant materials, often lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 8-10 days for the young to fledge.
29. Bay-breasted Warbler
Bay-breasted Warblers can be spotted in Illinois during migration, particularly in May and September. These lovely warblers exhibit unique features, with males showcasing a vibrant reddish-brown head and upperparts, a black face, and light underparts. Females have a more subdued appearance with duller plumage.
Scientific name: Setophaga castanea
Length: 5.1-5.5 inches (13-14 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 7.9-8.7 inches (20-22 cm)
Bay-breasted Warblers breed in parts of Canada and northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of forested habitats, including coniferous and mixed forests, where they actively forage for insects and spiders.
Listen to the melodious song of the Bay-breasted Warbler:
Audio Credit: Andrew Spencer, XC665540. Accessible at www.xeno-canto.org/665540.
Nests of Bay-breasted Warblers are typically constructed high up in coniferous trees, made from twigs, grasses, and plant materials, often lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 9-10 days for the young to fledge.
30. Orange-crowned Warbler
Orange-crowned Warblers are mainly spotted in Illinois during migration, particularly in April-May and September-October. These unassuming warblers exhibit subtle features, with males and females showcasing a greenish-gray overall coloration and an orange crown that is often concealed.
Scientific name: Leiothlypis celata
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
Orange-crowned Warblers breed across parts of western North America, primarily in Canada and the western United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of habitats, including woodlands, shrubby areas, and thickets, where they actively forage for insects and spiders.
Listen to the melodious song of the Orange-crowned Warbler:
Audio Credit: J.R. Rigby, XC597602. Accessible at www.xeno-canto.org/597602.
Nests of Orange-crowned Warblers are typically constructed low to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials. The warblers lay around three to six eggs, requiring approximately 12-13 days for incubation, followed by another 9-10 days for the young to fledge.
31. Cape May Warbler
Cape May Warblers can be spotted in Illinois during migration, particularly in April-May and August-September. These striking warblers exhibit unique features, with males showcasing a vibrant yellow-green overall coloration, a chestnut cheek patch, and distinctive striping on the breast. Females have a more subdued appearance with duller plumage.
Scientific name: Setophaga tigrina
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
Cape May Warblers breed in parts of Canada and the northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of habitats, including forests, woodlands, and shrubby areas, where they actively forage for insects and spiders.
Listen to the unique song of the Cape May Warbler:
Audio Credit: Andrew Spencer, XC673070. Accessible at www.xeno-canto.org/673070.
Nests of Cape May Warblers are typically constructed high up in coniferous trees, made from twigs, grasses, and plant materials, often lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 8-10 days for the young to fledge.
32. Canada Warbler
Canada Warblers grace Illinois during migration, particularly in May and August-September. These lovely warblers exhibit distinct features, with males showcasing a slate-blue upper body, bright yellow underparts, and a distinctive necklace of black streaks. Females have a similar appearance but with duller plumage.
Scientific name: Cardellina canadensis
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 6.7-7.5 inches (17-19 cm)
Canada Warblers breed in parts of northeastern North America, primarily in Canada and the northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers prefer dense understory habitats, such as wet thickets and bogs, where they forage for insects and spiders.
Listen to the melodious song of the Canada Warbler:
Audio Credit: Frank Lambert, XC520333. Accessible at www.xeno-canto.org/520333.
Nests of Canada Warblers are typically constructed close to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials, often lined with feathers. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 8-10 days for the young to fledge.
33. Pine Warbler
Pine Warblers can be found in Illinois year-round, although they are more prevalent during migration in April-May and August-September. These charming warblers exhibit subtle features, with males and females showcasing a yellowish overall coloration, often with faint streaking on the underparts.
Scientific name: Setophaga pinus
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
Pine Warblers breed across parts of eastern North America, primarily in the southeastern United States and parts of Canada. They can be observed in Illinois throughout the year.
These warblers inhabit a variety of habitats, including pine forests, mixed woodlands, and open areas with scattered trees, where they actively forage for insects and spiders.
Listen to the melodious song of the Pine Warbler:
Audio Credit: David Darrell-Lambert, XC382012. Accessible at www.xeno-canto.org/382012.
Nests of Pine Warblers are typically constructed high up in pine trees, made from twigs, grasses, and plant materials, often lined with fine materials. The warblers lay around three to five eggs, requiring approximately 12-13 days for incubation, followed by another 9-10 days for the young to fledge.
34. Golden-winged Warbler
Golden-winged Warblers are spotted in Illinois during migration, particularly in April-May and August-September. These striking warblers exhibit distinct features, with males showcasing a black throat and face, yellow crown and wing bars, and gray upperparts. Females have a more subdued appearance with duller plumage.
Scientific name: Vermivora chrysoptera
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.5 inches (18-19 cm)
Golden-winged Warblers breed in parts of northeastern North America, primarily in Canada and the northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of habitats, including early-successional forests, shrubby areas, and wetlands, where they actively forage for insects and spiders.
Listen to the unique song of the Golden-winged Warbler:
Audio Credit: Frank Lambert, XC329214. Accessible at www.xeno-canto.org/329214.
Nests of Golden-winged Warblers are typically constructed on or near the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials, often lined with feathers. The warblers lay around three to five eggs, requiring approximately 11-13 days for incubation, followed by another 8-10 days for the young to fledge.
35. Blue-winged Warbler
Blue-winged Warblers can be spotted in Illinois during migration, particularly in April-May and August-September. These attractive warblers exhibit unique features, with males showcasing a vibrant yellow overall coloration, black eye patches, and distinctive blue-gray wings. Females have a similar appearance but with duller plumage.
Scientific name: Vermivora cyanoptera
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.5 inches (18-19 cm)
Blue-winged Warblers breed in parts of eastern North America, primarily in the eastern United States and parts of Canada. During migration, they can be observed in various states, including Illinois.
These warblers inhabit a variety of habitats, including early-successional forests, shrubby areas, and fields with scattered trees, where they actively forage for insects and spiders.
Listen to the distinctive song of the Blue-winged Warbler:
Audio Credit: Paul Driver, XC415006. Accessible at www.xeno-canto.org/415006.
Nests of Blue-winged Warblers are typically constructed close to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials. The warblers lay around three to six eggs, requiring approximately 11-12 days for incubation, followed by another 8-9 days for the young to fledge.
36. Mourning Warbler
Mourning Warblers grace Illinois during migration, particularly in May and August-September. These beautiful warblers exhibit unique features, with males showcasing a grayish-blue head, yellow underparts, and a distinctive necklace of black streaks. Females have a similar appearance but with duller plumage.
Scientific name: Geothlypis philadelphia
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.5 inches (18-19 cm)
Mourning Warblers breed in parts of northeastern North America, primarily in Canada and the northeastern United States. During migration, they can be observed in various states, including Illinois.
These warblers prefer dense understory habitats, such as moist forests, thickets, and shrubby areas, where they forage for insects and spiders.
Listen to the melodious song of the Mourning Warbler:
Audio Credit: Andrew Spencer, XC542113. Accessible at www.xeno-canto.org/542113.
Nests of Mourning Warblers are typically constructed close to the ground, hidden in dense vegetation or shrubs. They are cup-shaped and built from grasses, plant fibers, and fine materials. The warblers lay around three to five eggs, requiring approximately 11-12 days for incubation, followed by another 8-9 days for the young to fledge.
That completes the addition of the remaining warbler species found in Illinois, bringing the total count to 36.
The Frequency of Warbler Sightings in Illinois during Summer and Winter
Discovering how often warblers are observed in your state can be accomplished through the use of checklists. These valuable resources provide insights into the warbler species commonly spotted in Illinois during the summer and winter seasons, as documented on ebird checklists.
Warblers found in Illinois during the summer:
33.8% – Common Yellowthroat
21.9% – Yellow Warbler
12.1% – American Redstart
11.3% – Yellow-rumped Warbler
11.3% – Palm Warbler
7.9% – Nashville Warbler
7.7% – Magnolia Warbler
7.6% – Black-and-white Warbler
6.9% – Chestnut-sided Warbler
6.7% – Tennessee Warbler
6.2% – Black-throated Green Warbler
6.2% – Northern Waterthrush
6.2% – Northern Parula
6.2% – Ovenbird
4.5% – Wilson’s Warbler
4.4% – Blackburnian Warbler
4.4% – Blackpoll Warbler
3.0% – Canada Warbler
3.0% – Yellow-breasted Chat
2.6% – Prothonotary Warbler
2.6% – Bay-breasted Warbler
2.3% – Blue-winged Warbler
2.1% – Cape May Warbler
2.1% – Orange-crowned Warbler
2.0% – Golden-winged Warbler
1.9% – Mourning Warbler
1.6% – Yellow-throated Warbler
1.4% – Kentucky Warbler
1.4% – Black-throated Blue Warbler
1.2% – Hooded Warbler
1.2% – Louisiana Waterthrush
1.2% – Pine Warbler
0.6% – Connecticut Warbler
0.6% – Cerulean Warbler
0.5% – Prairie Warbler
0.4% – Worm-eating Warbler
Warblers found in Illinois during the winter:
1.6% – Yellow-rumped Warbler
0.1% – Pine Warbler
0.1% – Orange-crowned Warbler
<0.1% – Palm Warbler
<0.1% – Cape May Warbler
<0.1% – Common Yellowthroat
<0.1% – Nashville Warbler
<0.1% – Black-throated Blue Warbler
<0.1% – Northern Waterthrush
<0.1% – Ovenbird
<0.1% – Tennessee Warbler
<0.1% – Yellow-throated Warbler
<0.1% – American Redstart
<0.1% – Kentucky Warbler
<0.1% – Wilson’s Warbler
<0.1% – Yellow-breasted Chat
<0.1% – Prothonotary Warbler
Methods to Attract Warblers to Your Backyard
While warblers may not be as prevalent at backyard feeders compared to other songbirds, there are strategies you can employ to entice these harmonious avian creatures to visit your yard:
1. If your yard is spacious enough, provide an assortment of trees.
2. Create brush piles and maintain a less manicured space to establish a friendly habitat for insects.
3. Avoid using pesticides or herbicides, ensuring an abundant insect population for the birds without any harmful substances.
4. Establish a clean water source for the warblers.
5. Offer mealworms, preferably live ones, but dried alternatives can be provided if necessary.
6. Utilize bird feeders containing sunflower seeds, peanut hearts, and suet.
What is the Melodic Call of Warblers?
More often than not, warblers reveal their presence through their distinct songs, allowing for easier identification upon both visual and auditory encounters. Fortunately, certain warbler species possess more recognizable vocalizations than others.
Warbler songs exhibit characteristics such as buzzing, clarity, or trilling, with variations in pitch and a medley of different sounds. A buzzy note resembles the chirping of insects, while a clear note resonates like a whistle. Trilling occurs at such a rapid pace that individual notes become indistinguishable.
For all the warblers listed in this guide, their songs are available to be heard. To assist in identification, a comprehensive compilation of 13 easily recognizable warbler songs is provided.
Warblers with Buzzing Songs:
– The song of the Black-throated Blue Warbler ascends with a buzzing quality.
– Prairie Warblers also produce buzzing songs that rise in pitch.
– Black-throated Green Warblers emit buzzing songs with interspersed clear notes.
– Blackpoll Warblers’ songs are clear and steady, resembling the buzzing of an insect.
– Prairie Warblers’ songs are buzzy and ascend in pitch.
– Palm Warblers’ songs carry a buzzy quality.
Warblers with Songs Containing Clear Notes:
– Common Yellowthroats’ songs consist of a series of rising and falling notes, repeated continuously.
– Ovenbirds produce a sequence of rising and falling notes.
– Hooded Warblers’ songs also contain clear notes.
– Chestnut-sided Warblers’ songs consist of a series of clear falling notes that accelerate toward the end.
– Yellow-rumped Warblers produce a series of clear notes that gradually fade away.
– Yellow Warblers’ songs accelerate in tempo.
– Northern Parulas exhibit a rising trill that concludes with a distinct note, similar to a punctuation mark.
– Wilson’s Warblers’ songs consist of a series of clear falling notes that increase in speed.