Unveiling a comprehensive guide to aid in the identification of the numerous warbler species frequently encountered in Iowa. This resource incorporates photo identification, detailed descriptions, captivating audio recordings of their melodious songs, intriguing facts, and much more.
Warblers, those petite migratory songbirds, embark on remarkable journeys spanning vast distances, from South America to breeding grounds as distant as Canada. These vibrant and energetic avian beings swiftly traverse from their breeding territories to wintering destinations, adorned in a brilliant tapestry of yellow and green, accompanied by an astounding array of captivating melodies.
Renowned as wood-warblers in North America, these remarkable creatures predominantly inhabit woodlands and forests. However, one may occasionally experience the curious ailment known as “warbler neck,” a discomforting condition resulting from prolonged observation of these arboreal wonders through binoculars, causing a stiff and tingly sensation in the neck.
Primarily insectivores, warblers often frequent backyard feeders in search of seeds or mealworms. Don’t miss the opportunity to explore the assortment of other bird species regularly gracing the landscapes of Iowa. A complimentary identification chart is available for printing.
This invaluable guide presents an extensive selection of warbler species observed within Iowa, focusing on those classified as regularly occurring based on avibase data and insights gathered from dedicated birdwatchers utilizing ebird. Thus, providing authentic information regarding the ideal periods to spot these marvelous creatures.
Warblers in Iowa during the summer include:
– Common Yellowthroat
– American Redstart
– Yellow Warbler
– Northern Parula
– Prothonotary Warbler
– Yellow-throated Warbler
– Louisiana Waterthrush
– Cerulean Warbler
– Kentucky Warbler
– Yellow-breasted Chat
– Hooded Warbler
– Worm-eating Warbler
Warblers in Iowa during migration encompass:
– Yellow-rumped Warbler
– Nashville Warbler
– Tennessee Warbler
– Black-and-white Warbler
– Palm Warbler
– Chestnut-sided Warbler
– Ovenbird
– Magnolia Warbler
– Orange-crowned Warbler
– Wilson’s Warbler
– Northern Waterthrush
– Black-throated Green Warbler
– Blackburnian Warbler
– Golden-winged Warbler
– Blackpoll Warbler
– Canada Warbler
– Blue-winged Warbler
– Bay-breasted Warbler
– Mourning Warbler
– Cape May Warbler
– Pine Warbler
– Connecticut Warbler
– Black-throated Blue Warbler
What Do Warblers Sound Like?
Warblers, true to their nature, often make their presence known through their enchanting melodies, their songs heralding their arrival before their physical appearance. Familiarizing oneself with a few of their distinct songs facilitates easier identification. Fortunately, certain warblers possess more recognizable and unique songs compared to others.
The songs of warblers encompass a range of characteristics, described as buzzy, clear, or trilling, sometimes ascending or descending in pitch, and exhibiting diverse tonal patterns. Buzzy notes evoke an insect-like resonance, while clear notes resemble melodious whistles, and trills are a rapid succession of notes fused together, defying individual perception.
For each warbler featured within this guide, their songs can be heard, yet it is highly recommended to explore an additional compendium showcasing 13 easily identifiable warbler songs.
Warblers with Buzzy Songs:
– Black-throated Blue Warbler: A buzzy song that ascends in pitch
– Prairie Warbler: Possesses a buzzy and rising song
– Black-throated Green Warbler: Exhibits a buzzy song with a couple of clear notes in the middle
– Blackpoll Warbler: Delivers a clear and steady song resembling the buzz of an insect
– Palm Warbler: Offers a buzzy song
Warblers with Songs Featuring Clear Notes:
– Common Yellowthroat: Comprises a series of rising and falling notes, repeatedly sung
– Ovenbird: Performs a sequence of rising and falling notes
– Hooded Warbler: Showcases clear notes
– Chestnut-sided Warbler: Presents a series of clear falling notes that accelerate toward the end
– Yellow-rumped Warbler: Produces a series of clear notes that gradually fade away
– Yellow Warbler: Accelerates its song
– Northern Parula: Exhibits a rising trill, concluding with a distinct note akin to a period indicating a pause
– Wilson’s Warbler: Depicts a sequence of clear falling notes that accelerate
A Plethora of Warblers in Iowa:
1. Common Yellowthroat
Iowa’s landscape frequently witnesses the presence of Common Yellowthroats during their breeding season. From mid-April to October, these small songbirds grace the region, documented in approximately 37% of summer checklists submitted by avid birdwatchers.
Characterized by a brownish back and a vibrant yellow underbelly, Common Yellowthroats possess elongated tails. Male specimens showcase a striking black mask across their visage. It’s worth noting that the intensity of their yellow plumage may vary across different geographical regions, with some individuals exhibiting a more olive hue on the ventral side.
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 embark on their summer breeding journey throughout most of North America, excluding Alaska and northern Canada. While some remain in Gulf Coast and Pacific Southwest regions year-round, the majority migrate southward for the winter season.
Favoring marshy areas, wetlands, and brushy fields, Common Yellowthroats find solace amidst dense and entangled vegetation.
Song of the Common Yellowthroat:
Credit: Paul Marvin, XC629250. Accessible at www.xeno-canto.org/629250.
Common Yellowthroat nests, constructed by females near the ground within marshy domains, rely on reeds for support. Composed of grass, sedges, and leaves, the nests offer a cup-shaped abode. The females lay up to six eggs, hatching in approximately twelve days, followed by another dozen days before the young fledge from the nest.
Lure Common Yellowthroats to spacious backyards adorned with luxuriant vegetation and native plants that attract insects.
Fun Fact: The presence of a black mask on male Common Yellowthroats serves as a visual cue to competing males, triggering aggressive behavior. Intriguingly, these feathery warriors refrain from attacking decoy birds lacking the distinctive mask.
2. Yellow-rumped Warbler
Yellow-rumped Warblers make their appearance during migration in Iowa, particularly from April to May and September to October. These remarkable birds grace approximately 42% of checklists throughout their migratory journeys. Interestingly, a few individuals choose to winter in the southern regions of the state.
Featuring gray plumage accompanied by flashes of yellow on their faces, flanks, and rump, these warblers boast white wing patches. Females may exhibit a slightly browner hue, while winter specimens sport paler brown feathers, gradually transitioning to vibrant yellow and gray tones come springtime.
There exist two subspecies: the Myrtle Warbler, present in the eastern United States and boreal Canadian forests, lacks the yellow throat, while Audubon’s Warbler, found in the western regions, displays additional white in its wings.
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, the Rockies, and the Appalachian Mountains. During migration, they grace the Midwest before embarking on their winter sojourn across southern and southwestern states, the Pacific Coast, Mexico, and Central America.
Coniferous forests serve as the preferred habitat for Yellow-rumped Warblers during the breeding season. However, they can be found in open areas with fruiting shrubs throughout winter. Their diet predominantly consists of insects during the summer and shifts to fruit consumption, including bayberries and wax myrtle, during migration and winter.
Song of the Yellow-rumped Warbler:
Credit: Christopher McPherson, XC602699. Accessible at www.xeno-canto.org/602699.
Yellow-rumped Warblers construct nests within conifer trees, employing twigs, pine needles, and grass, which they line with soft grass, moss, and animal hair. Incubation lasts around two weeks, after which the young spend an additional fortnight within the nest before venturing into the world.
Invite Yellow-rumped Warblers to your backyard by offering sunflower seeds, suet, raisins, and peanut butter.
Fun Fact: Yellow-rumped Warblers congregate in flocks numbering in the thousands during winter, displaying territorial aggressiveness toward any intruding species.
3. American Redstart
American Redstarts grace Iowa’s landscape throughout their breeding season, typically observed between May and October. These exquisite creatures appear in approximately 20% of summer checklists.
Draped predominantly in black plumage adorned with vibrant orange patches and a white belly, American Redstart males capture attention. In contrast, females exhibit an olive-gray complexion with yellow patches.
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 United States and Canada, extending to the northwestern regions of the United States. Their migration routes may reveal their presence in central and western states.
Deciduous woodlands serve as preferred habitats for American Redstarts, where they fervently forage for insects. These charming birds can also be observed in backyards and thickets, delighting in the consumption of berries such as serviceberry and magnolia.
American Redstart Song:
Credit: Nick Kiehl, XC522368. Accessible at www.xeno-canto.org/522368.
American Redstart nests are nestled close to tree trunks within sizable trees or large shrubs. Composed of bark, grass, and various plant materials, these nests offer a platform of leaves and grass for support. The female lays up to five eggs, requiring nearly two weeks for hatching, followed by an additional week or two before the fledglings leave the nest.
Attract American Redstarts to your backyard by cultivating berry-bearing plants such as magnolia and serviceberry.
Fun Fact: American Redstart parents selectively feed specific chicks rather than providing sustenance to all offspring uniformly.
4. Yellow Warbler
Yellow Warblers make their presence felt in Iowa from mid-April to mid-October, gracing the region during the summer months. These delightful birds feature bright yellow plumage with a yellow-green back. Male
individuals boast chestnut streaks on their breasts, while females and juveniles exhibit less vibrant colors, devoid of the streaks.
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, journeying from Central and South America to breed in Canada and the United States, excluding the southeastern states. Additionally, they can be spotted during migration in the southeastern regions of the United States.
These charming warblers primarily inhabit streamside areas, wetlands, thickets, and field edges, where they actively seek out insects such as caterpillars, midges, beetles, bugs, and wasps.
Yellow Warbler Song:
Credit: Richard E. Webster, XC662546. Accessible at www.xeno-canto.org/662546.
Yellow Warbler nests are typically found in small trees or shrubs, meticulously woven from bark, grass, and plant materials, held together by spiderwebs. The cup-shaped nests are further lined with softer materials like hair, feathers, and plant down. Female Yellow Warblers lay up to seven eggs, with an incubation period of around twelve days, followed by an additional ten days before the young venture forth from the nest.
To entice Yellow Warblers to your backyard, provide suet, oranges, peanut butter, and plants bearing berries. Additionally, cultivate native plants that attract insects, while abstaining from pesticide use or excessive tidiness. Consider incorporating birdbaths with fountains amidst secluded plantings to offer protection.
Fun Fact: Yellow Warbler nests often fall victim to parasitic cowbirds. When detected, Yellow Warblers build a new nest atop the old one, restarting the nesting process up to six times!
5. Nashville Warbler
Nashville Warblers pass through Iowa during their spring and fall migrations, typically observed from April to June and August to October.
Sporting predominantly yellow plumage accompanied by a green back and a gray head with a distinctive white eye-ring, Nashville Warblers exhibit white bellies nestled between their yellow breasts and tail undersides.
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)
Nashville Warblers breed in northeastern United States and Canada, with a smaller population inhabiting the northwestern regions and extending into British Columbia. Additionally, they can be spotted during migration across most states.
Scrubby habitats and low deciduous forests serve as favored dwelling places for Nashville Warblers, where they diligently hunt for insects.
Nashville Warbler Song:
Credit: Peter Ward and Ken Hall, XC512262. Accessible at www.xeno-canto.org/512262.
Nashville Warbler nests are often concealed amidst moss or tree roots, meticulously crafted from grass and weeds. The nests offer a cup-shaped structure woven from these materials and lined with pine needles, soft grass, and animal hair. Female Nashville Warblers lay approximately five eggs, requiring twelve days to hatch, with another ten days before the young leave the nest.
Encourage Nashville Warblers to visit your backyard during winter by providing suet.
Fun Fact: Nashville Warblers initially migrate along the Atlantic Coast but subsequently opt for inland routes during subsequent migrations.
6. Tennessee Warbler
Tennessee Warblers migrate through Iowa, usually observed from mid-April to June and August to October. Approximately 25% of checklists during migration document their transient presence.
Tennessee Warblers exhibit gray heads, green backs, and whitish undersides. Females possess a greener appearance with yellow underparts and green heads. Males feature a white eyestripe, while females display a yellow eyestripe. Both genders have white undertails.
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 journeys from Central America to Canada. During migration, they grace the eastern regions of the United States.
Tennessee Warblers primarily feed on caterpillars, foraging amidst trees and shrubs within woodlands.
Tennessee Warbler Song:
Credit: Christopher McPherson, XC444969. Accessible at www.xeno-canto.org/444969.
Nests of Tennessee Warblers are cleverly concealed within moss or tree roots, composed of grass and weed materials. These nests accommodate around six eggs, requiring approximately twelve days for hatching, followed by an additional ten days before the young leave the nest.
Fun Fact: Despite their name, Tennessee Warblers spend minimal time in Tennessee and were named after being initially sighted there.
7. Black-and-white Warbler
Migration brings Black-and-white Warblers to Iowa, with sightings most common in May and September. Approximately 18% of checklists during migration acknowledge their presence.
Black-and-white Warblers boast a distinctive striped appearance, rendering them easily recognizable. Males feature a black patch extending across the eye and cheek, displaying darker black plumage compared to females.
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)
Black-and-white Warblers breed in the eastern United States and Canada. During winter, they migrate to Florida, the Gulf Coast, Mexico, Baja California, the Caribbean, and northern South America. Their migration paths lead them through central regions of the United States.
These captivating warblers can be found hopping up and down tree trunks and branches in forests, tirelessly seeking out insects.
Black-and-white Warbler Song:
Credit: Christopher McPherson, XC600300. Accessible at www.xeno-canto.org/600300.
Black-and-white Warbler nests are often concealed near the ground, frequently under logs or shrubs. Constructed from bark, grass, and pine needles, the nests boast a cup-like structure. The female lays around five eggs, requiring approximately eleven days for hatching, followed by another ten days before the young leave the nest.
8. Palm Warbler
During the spring and fall migration, Palm Warblers grace the state of Iowa. They are most prevalent during the spring migration in May, featuring in approximately 18% of checklists.
Distinguished by a rusty red patch atop their heads, Palm Warblers possess a brownish-olive hue across their bodies. Western individuals exhibit whiter bellies. Male and female Palm Warblers exhibit identical appearances during the breeding season, while non-breeding birds showcase a duller crown.
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 predominantly breed in Canada
and can be observed during migration in the eastern regions of the United States. Some individuals spend their winters in Florida and along the southeastern coast.
Spring and fall migrations offer opportunities to spot Palm Warblers in weedy fields, forest edges, and scrubby areas. They often forage on the ground alongside other birds such as Sparrows, Juncos, and Yellow-rumped Warblers.
Palm Warbler Song:
Credit: Richard E. Webster, XC189604. Accessible at www.xeno-canto.org/189604.
Nests of Palm Warblers are typically located in bogs and boreal forests, constructed on the ground. These nests comprise grass, sedge, and ferns woven together to form a cup shape, lined with soft grass, feathers, and animal hair. Approximately five eggs are laid.
Attract Palm Warblers to your backyard by cultivating native plants that attract insects, and consider planting bayberry or hawthorn to provide berries.
Fun Fact: Palm Warblers exhibit a unique behavior among warblers, often walking on the ground while bobbing their tails in search of insects.
9. Chestnut-sided Warbler
Chestnut-sided Warblers migrate through Iowa, passing by from May to mid-July and August to October. Approximately 14% of checklists during migration acknowledge their transient presence.
Male Chestnut-sided Warblers display bright yellow crowns, black masks, and gray undersides with chestnut streaks. In winter, their plumage transforms into green and white, resembling the appearance of breeding females.
Females exhibit paler colors without black facial markings. They maintain their chestnut sides and yellow crowns during the breeding season, but during winter, the chestnut sides fade, and the crown brightens. Juveniles resemble winter females.
Setophaga pensylvanica
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.4-0.5 ounces (10.7-14.3 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
Chestnut-sided Warblers breed in northeastern United States and southeastern Canada, while also being observed during migration across eastern regions of the United States.
These warblers favor forest edges and thickets, particularly those in the process of regenerating after fires, logging, or floods. Their diet primarily consists of insects.
Chestnut-sided Warbler Song:
Credit: Christopher McPherson, XC600739. Accessible at www.xeno-canto.org/600739.
Chestnut-sided Warbler nests are situated in trees and shrubs near the ground, composed of grass, weeds, and bark woven together to form a cup structure. The nests are lined with softer materials. Up to five eggs are laid, requiring approximately twelve days to hatch, with an additional eleven days before the young leave the nest.
Fun Fact: Chestnut-sided Warblers exhibit a unique preference for forests in the process of regeneration. Once these forests reach approximately ten years of age, the warblers seek alternative breeding habitats.
10. Ovenbird
While predominantly observed during migration, Ovenbirds also spend the breeding season in Iowa. They feature in approximately 5% of summer checklists and up to 11% of migration checklists.
Ovenbirds possess olive-green backs and black-and-white spotted undersides, showcasing a relatively subdued appearance compared to other warblers.
Seiurus aurocapilla
Length: 4.3-5.5 inches (11-14 cm)
Weight: 0.6-1.0 ounces (16-28 g)
Wingspan: 7.5-10.2 inches (19-26 cm)
Ovenbirds breed in northeastern United States, Canada, the Midwest, and the northwest regions of Canada. During migration, they can be observed in the eastern regions of the United States. They spend their winters in Florida, Mexico, Central America, northern South America, and the Caribbean.
Ovenbirds are commonly found rummaging through leaf litter on the forest floor, in search of insects.
Ovenbird Song:
Credit: Christopher McPherson, XC602036. Accessible at www.xeno-canto.org/602036.
Nests of Ovenbirds are often situated on the ground, skillfully constructed by females using leaves, grass, bark, and other plant materials. The nests possess a side entrance and are lined with animal hair. Approximately five eggs are laid, requiring two weeks to hatch, with an additional ten days for the young to leave the nest.
Fun Fact: Ovenbirds derive their name from the unique shape of their nests, which resemble Dutch ovens.
11. Magnolia Warbler
Magnolia Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in approximately 12% of checklists during migration.
Magnolia Warblers feature a black necklace-like pattern across their yellow chests, with bold white wing bars and a black streak through their eyes. Their backs are adorned with striking black and gray patterns.
Setophaga magnolia
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
Breeding primarily in the boreal forests of Canada, Magnolia Warblers embark on extensive migrations, passing through eastern regions of the United States. During winter, they can be found in parts of Central and South America.
Magnolia Warblers prefer forested habitats, especially areas with dense shrubs and young trees. They forage actively for insects along branches and foliage.
Magnolia Warbler Song:
Credit: Christopher McPherson, XC632242. Accessible at www.xeno-canto.org/632242.
Nests of Magnolia Warblers are typically situated on the ground or in low vegetation, skillfully woven with grasses, moss, and twigs. They lay around four to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
12. Orange-crowned Warbler
Orange-crowned Warblers can be spotted in Iowa during migration, typically observed from April to May and September to October. They occur in up to 10% of checklists during migration.
Orange-crowned Warblers have a relatively plain appearance, with olive-green plumage and subtle streaking on their undersides. Despite their name, their orange crown is often hidden and not readily visible.
Leiothlypis celata
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-10 g)
Wingspan: 7.1-8.7 inches (18-22 cm)
These warblers breed in the northern regions of the United States and Canada, as well as in Alaska. During migration, they pass through various parts of the United States.
Orange-crowned Warblers inhabit a range of habitats, including shrubby areas, open woodlands, and parks. They feed primarily on insects and spiders.
Orange-crowned Warbler Song:
Credit: Greg Irving, XC682171. Accessible at www.xeno-canto.org/682171.
Nests of Orange-crowned Warblers are typically situated on or near the ground, constructed from grasses, moss, and plant fibers, and lined with feathers and hair. They lay around five to six eggs, which hatch after approximately two weeks. The young birds fledge within ten days.
13. Wilson’s Warbler
Wilson’s Warblers migrate through Iowa, typically observed during their spring and fall migrations from April to May and August to September. They occur in up to 15% of checklists during migration.
Wilson’s Warblers are small and vibrant, with bright yellow plumage, olive-green backs, and distinctive black caps on the males. Females have a similar appearance but with a lighter cap.
Cardellina pusilla
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.2-0.3 ounces (6-8 g)
Wingspan: 6.7-7.5 inches (17-19 cm)
These warblers breed in the western regions of North America, from Alaska to California and into the Rocky
Mountains. During migration, they can be found in various parts of the United States.
Wilson’s Warblers prefer habitats with dense vegetation, such as shrubby areas, forests, and streamside thickets. They actively forage for insects, often fluttering their wings.
Wilson’s Warbler Song:
Credit: Robert Packard, XC561709. Accessible at www.xeno-canto.org/561709.
Nests of Wilson’s Warblers are usually situated close to the ground in dense vegetation, skillfully woven with grasses, plant fibers, and moss. They lay around four to six eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
14. Northern Waterthrush
Northern Waterthrushes migrate through Iowa during their spring and fall migrations, typically observed from April to May and August to September. They occur in up to 8% of checklists during migration.
Northern Waterthrushes are medium-sized warblers with streaked brown plumage on their backs and white undersides with bold streaking. They possess distinctive pink legs and a long, thin bill.
Parkesia noveboracensis
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.4-0.7 ounces (11-20 g)
Wingspan: 7.9-8.7 inches (20-22 cm)
These warblers breed in the northern regions of the United States and Canada, often near water bodies such as bogs, swamps, and marshes. During migration, they can be observed in various parts of the United States.
Northern Waterthrushes are primarily found in wet habitats, including streamsides, ponds, and forested wetlands. They actively forage on the ground, probing and bobbing their tails for insects and small invertebrates.
Northern Waterthrush Song:
Credit: Andrew Spencer, XC542511. Accessible at www.xeno-canto.org/542511.
Nests of Northern Waterthrushes are typically situated on the ground, hidden among vegetation, and constructed from leaves, grasses, and moss. They lay around four to six eggs, which hatch after approximately two weeks. The young birds fledge within ten days.
15. Black-throated Green Warbler
Black-throated Green Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and August to September. They occur in up to 10% of checklists during migration.
Black-throated Green Warblers possess vibrant green plumage, with bright yellow faces, black throats, and white wing bars. Females have a similar appearance but with paler colors.
Setophaga virens
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 8.3-9.1 inches (21-23 cm)
These warblers breed in the northern regions of the United States and Canada, primarily in coniferous and mixed forests. During migration, they can be found in various parts of the United States.
Black-throated Green Warblers prefer mature forests with ample tree cover. They actively forage for insects by hopping along branches and foliage.
Black-throated Green Warbler Song:
Credit: David Vander Pluym, XC670905. Accessible at www.xeno-canto.org/670905.
Nests of Black-throated Green Warblers are usually situated in coniferous trees, constructed from twigs, bark, and moss, and lined with softer materials. They lay around four to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
16. Blackburnian Warbler
Blackburnian Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and August to September. They occur in up to 6% of checklists during migration.
Blackburnian Warblers are striking with their fiery orange throats, black and white striped heads, and vibrant yellow bodies. Females possess a similar pattern but with duller colors.
Setophaga fusca
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
These warblers breed in the northeastern regions of the United States and Canada, primarily in coniferous forests. During migration, they can be found in various parts of the United States.
Blackburnian Warblers prefer mature coniferous forests, especially those with spruce and fir trees. They actively forage for insects by gleaning foliage and branches.
Blackburnian Warbler Song:
Credit: Greg Irving, XC365491. Accessible at www.xeno-canto.org/365491.
Nests of Blackburnian Warblers are typically situated high up in coniferous trees, constructed from twigs, bark, and moss, and lined with softer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
17. Golden-winged Warbler
Golden-winged Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and August to September. They occur in up to 4% of checklists during migration.
Golden-winged Warblers are small and distinctive, with grayish-blue upperparts, bright yellow underparts, and bold black facial markings. Males possess golden-yellow wing patches.
Vermivora chrysoptera
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.1-7.9 inches (18-20 cm)
These warblers breed in the northern regions of the United States and Canada, often in shrubby habitats near wetlands and young forests. During migration, they can be observed in various parts of the United States.
Golden-winged Warblers inhabit early successional habitats, such as regenerating forests, shrubby areas, and edges of wetlands. They actively forage for insects by hopping and flitting through foliage.
Golden-winged Warbler Song:
Credit: Kent Fiala, XC338896. Accessible at www.xeno-canto.org/338896.
Nests of Golden-winged Warblers are usually situated in shrubs or young trees, constructed from twigs, grasses, and plant fibers, and lined with finer materials. They lay around three to six eggs, which hatch after approximately two weeks. The young birds fledge within ten days.
18. Blackpoll Warbler
Blackpoll Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 8% of checklists during migration.
Blackpoll Warblers feature grayish-black crowns, white cheeks, and streaked grayish-white underparts. Males possess a black breast patch during the breeding season.
Setophaga striata
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Blackpoll Warblers inhabit a range of forested habitats, including both coniferous and deciduous forests. They actively forage for insects, often catching them in mid-air.
Blackpoll Warbler Song:
Credit: David Darrell-Lambert, XC685708. Accessible at www.xeno-canto.org/685708.
Nests of Blackpoll Warblers are typically situated in coniferous trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
19. Canada Warbler
Canada Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 5% of checklists during migration.
Canada Warblers are small and striking, with bluish-gray upperparts, bright yellow underparts, and a distinctive necklace of black streaks across their yellow throats.
Cardellina canadensis
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
These warblers breed in the northern regions of the United States and Canada, primarily in spruce-fir and mixed forests. During migration, they can be found in various parts of the United States.
Canada Warblers prefer dense forests with understory vegetation, often near wetlands or streams. They actively forage for insects by hopping along the ground and foliage.
Canada Warbler Song:
Credit: Nick Kiehl, XC550847. Accessible at www.xeno-canto.org/550847.
Nests of Canada Warblers are usually situated on or near the ground in dense vegetation, skillfully constructed from grasses, moss, and leaves. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
20. Blue-winged Warbler
Blue-winged Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 6% of checklists during migration.
Blue-winged Warblers are small and vibrant, with yellow bodies, olive-green upperparts, and distinctive blue wings. Males possess a black eye stripe.
Vermivora cyanoptera
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)
These warblers breed in the eastern regions of the United States and southern Ontario, primarily in early successional habitats and shrubby areas. During migration, they can be observed in various parts of the United States.
Blue-winged Warblers inhabit shrubby habitats, including young forests, fields, and edges. They actively forage for insects by gleaning foliage and branches.
Blue-winged Warbler Song:
Credit: Ted Floyd, XC175132. Accessible at www.xeno-canto.org/175132.
Nests of Blue-winged Warblers are typically situated in shrubs or young trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around four to five eggs, which hatch after approximately two weeks. The young birds fledge within ten days.
21. Bay-breasted Warbler
Bay-breasted Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 4% of checklists during migration.
Bay-breasted Warblers have striking plumage, with reddish-brown upperparts, pinkish-buff underparts, and a distinct chestnut-colored patch on the males. Females have a similar pattern but with duller colors.
Setophaga castanea
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)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Bay-breasted Warblers prefer coniferous and mixed forests, often foraging at the tips of branches for insects.
Bay-breasted Warbler Song:
Credit: Frank Lambert, XC678160. Accessible at www.xeno-canto.org/678160.
Nests of Bay-breasted Warblers are typically situated high up in coniferous trees, constructed from twigs, bark, and moss, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
22. Tennessee Warbler
Tennessee Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 8% of checklists during migration.
Tennessee Warblers are small and plain, with olive-green upperparts, pale gray underparts, and a faint eye ring. They lack distinct markings.
Leiothlypis peregrina
Length: 4.3-4.7 inches (11-12 cm)
Weight: 0.2-0.3 ounces (6-8 g)
Wingspan: 6.7-7.5 inches (17-19 cm)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Tennessee Warblers inhabit a range of forested habitats, including both coniferous and deciduous forests. They actively forage for insects, often hovering or gleaning foliage.
Tennessee Warbler Song:
Credit: David Vander Pluym, XC667682. Accessible at www.xeno-canto.org/667682.
Nests of Tennessee Warblers are typically situated on the ground or in low vegetation, constructed from grasses, moss, and leaves, and lined with finer materials. They lay around four to six eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
23. Cape May Warbler
Cape May Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 5% of checklists during migration.
Cape May Warblers have a unique appearance, with greenish-yellow upperparts, streaked underparts, and a distinctive rusty-colored cheek patch. Males possess a black chest patch.
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)
These warblers breed in the boreal forests of Canada, primarily in spruce and fir trees. During migration, they can be found in various parts of the United States.
Cape May Warblers inhabit various forested habitats, including
coniferous forests, deciduous forests, and wooded areas near water. They actively forage for insects, often extracting nectar from flowers.
Cape May Warbler Song:
Credit: Andrew Spencer, XC647915. Accessible at www.xeno-canto.org/647915.
Nests of Cape May Warblers are usually situated high up in coniferous trees, constructed from twigs, bark, and plant fibers, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
24. Connecticut Warbler
Connecticut Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 2% of checklists during migration.
Connecticut Warblers have plain and subtle plumage, with olive-green upperparts, gray underparts, and a distinctive yellow eyering. They possess a long bill.
Oporornis agilis
Length: 5.1-5.5 inches (13-14 cm)
Weight: 0.4-0.6 ounces (11-17 g)
Wingspan: 7.9-8.7 inches (20-22 cm)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Connecticut Warblers inhabit dense undergrowth and shrubby habitats, often near wetlands. They actively forage for insects, frequently skulking through the vegetation.
Connecticut Warbler Song:
Credit: Andrew Spencer, XC680632. Accessible at www.xeno-canto.org/680632.
Nests of Connecticut Warblers are usually situated on or near the ground in dense vegetation, constructed from grasses, leaves, and moss, and lined with finer materials. They lay around four to six eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
25. Mourning Warbler
Mourning Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 5% of checklists during migration.
Mourning Warblers have a unique appearance, with olive-green upperparts, gray underparts, and a blue-gray hood. Males possess a black bib.
Geothlypis philadelphia
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)
These warblers breed in the northeastern regions of the United States and Canada, primarily in wet thickets and shrubby habitats. During migration, they can be found in various parts of the United States.
Mourning Warblers inhabit understory vegetation and shrubby areas, often near wetlands or streams. They actively forage for insects by hopping along the ground and foliage.
Mourning Warbler Song:
Credit: Frank Lambert, XC536620. Accessible at www.xeno-canto.org/536620.
Nests of Mourning Warblers are typically situated on the ground or in low vegetation, constructed from grasses, leaves, and moss, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
26. Pine Warbler
Pine Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 7% of checklists during migration.
Pine Warblers have a subdued appearance, with olive-green upperparts, pale yellow underparts, and streaking on the sides. They have a thin bill and white wing bars.
Setophaga pinus
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
These warblers breed in the eastern regions of the United States and southern Canada, primarily in pine forests. During migration, they can be found in various parts of the United States.
Pine Warblers inhabit pine forests, where they forage for insects by searching bark and foliage. They are known to eat seeds and berries as well.
Pine Warbler Song:
Credit: Ted Floyd, XC588070. Accessible at www.xeno-canto.org/588070.
Nests of Pine Warblers are usually situated high up in pine trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
27. Palm Warbler
Palm Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 10% of checklists during migration.
Palm Warblers have a distinctive appearance, with brownish-olive upperparts, yellow underparts, and a rusty cap. They possess a pale eyering.
Setophaga palmarum
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.3-0.4 ounces (8-11 g)
Wingspan: 7.5-8.7 inches (19-22 cm)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Palm Warblers inhabit a range of habitats, including forests, wetlands, and scrubby areas. They actively forage for insects, often bobbing their tails while on the ground.
Palm Warbler Song:
Credit: Andrew Spencer, XC679358. Accessible at www.xeno-canto.org/679358.
Nests of Palm Warblers are typically situated on the ground or low in vegetation, constructed from grasses, moss, and twigs, and lined with finer materials. They lay around four to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
28. Yellow-throated Warbler
Yellow-throated Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 3% of checklists during migration.
Yellow-throated Warblers have a striking appearance, with black and white stripes on the head, yellow throat and underparts, and olive-green upperparts.
Setophaga dominica
Length: 4.7-5.5 inches (12-14 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
These warblers breed in the southeastern regions of the United States, primarily in swampy forests and bottomlands. During migration, they can be found in various parts of the United States.
Yellow-throated Warblers inhabit mature forests near water, where they actively forage for insects and spiders.
Yellow-throated Warbler Song:
Credit: Andrew Spencer, XC593687. Accessible at www.xeno-canto.org/593687.
Nests of Yellow-throated Warblers are usually situated high up in deciduous trees, constructed from bark strips, grasses, and plant fibers, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
29. Kentucky Warbler
Kentucky Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 2% of checklists during migration.
Kentucky Warblers have a striking appearance, with yellow underparts, olive-green upperparts, and a black mask extending from the eyes to the throat.
Geothlypis formosa
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
These warblers breed in the southeastern regions of the United States, primarily in dense understory habitats. During migration, they can be found in various parts of the United States.
Kentucky Warblers inhabit moist woodlands, where they actively forage for insects and other invertebrates.
Kentucky Warbler Song:
Credit: Andrew Spencer, XC671839. Accessible at www.xeno-canto.org/671839.
Nests of Kentucky Warblers are usually situated on or near the ground, constructed from grasses, leaves, and moss, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
30. Worm-eating Warbler
Worm-eating Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 1% of checklists during migration.
Worm-eating Warblers have a distinctive appearance, with plain olive-brown upperparts, buffy underparts with fine streaks, and a prominent eye ring.
Helmitheros vermivorum
Length: 4.7-5.1 inches (12-13 cm)
Weight: 0.4-0.5 ounces (11-14 g)
Wingspan: 7.5-8.3 inches (19-21 cm)
These warblers breed in the southeastern regions of the United States, primarily in mature deciduous forests with a dense understory. During migration, they can be found in various parts of the United States.
Worm-eating Warblers inhabit forested slopes and ravines, where they actively forage for insects, especially caterpillars.
Worm-eating Warbler Song:
Credit: Andrew Spencer, XC682685. Accessible at www.xeno-canto.org/682685.
Nests of Worm-eating Warblers are usually situated on or near the ground in leaf litter, constructed from grasses, leaves, and bark strips, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
31. Black-throated Green Warbler
Black-throated Green Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 10% of checklists during migration.
Black-throated Green Warblers have a striking appearance, with yellow underparts, olive-green upperparts, and a black throat and face.
Setophaga virens
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)
These warblers breed in the northeastern regions of the United States and Canada, primarily in coniferous and mixed forests. During migration, they can be found in various parts of the United States.
Black-throated Green Warblers inhabit a range of forested habitats, where they actively forage for insects, often among the foliage.
Black-throated Green Warbler Song:
Credit: Richard E. Webster, XC660832. Accessible at www.xeno-canto.org/660832.
Nests of Black-throated Green Warblers are usually situated high up in coniferous trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
32. Blackburnian Warbler
Blackburnian Warblers migrate through Iowa during their spring and fall migrations, typically observed from April to May and September to October. They occur in up to 4% of checklists during migration.
Blackburnian Warblers have a stunning appearance, with bright orange throat and breast, black upperparts, and white wing bars.
Setophaga fusca
Length: 4.3-5.1 inches (11-13 cm)
Weight: 0.3-0.4 ounces (9-11 g)
Wingspan: 7.1-8.3 inches (18-21 cm)
These warblers breed in the northeastern regions of the United States and Canada, primarily in coniferous and mixed forests. During migration, they can be found in various parts of the United States.
Blackburnian Warblers inhabit the upper canopy of mature forests, where they actively forage for insects, often gleaning from foliage.
Blackburnian Warbler Song:
Credit: Richard E. Webster, XC655248. Accessible at www.xeno-canto.org/655248.
Nests of Blackburnian Warblers are usually situated high up in coniferous trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
33. Bay-breasted Warbler
Bay-breasted Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 7% of checklists during migration.
Bay-breasted Warblers have a distinctive appearance, with reddish-brown upperparts, pale underparts with streaking, and a chestnut-colored crown.
Setophaga castanea
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)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Bay-breasted Warblers inhabit coniferous and mixed forests, where they actively forage for insects, often high up in the trees.
Bay-breasted Warbler Song:
Credit: Andrew Spencer, XC679326. Accessible at www.xeno-canto.org/679326.
Nests of Bay-breasted Warblers are usually situated high up in coniferous trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
34. Mourning Warbler
Mourning Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 2% of checklists during migration.
Mourning Warblers have a subdued appearance, with grayish-brown upperparts, yellow underparts with streaking, and a dark face mask.
Geothlypis philadelphia
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)
These warblers breed in the northeastern regions of the United States and Canada, primarily in wet areas with dense vegetation. During migration, they can be found in various parts of the United States.
Mourning Warblers inhabit shrubby areas, wetlands, and forests, where they actively forage for insects close to the ground.
Mourning Warbler Song:
Credit: Andrew Spencer, XC660745. Accessible at www.xeno-canto.org/660745.
Nests of Mourning Warblers are usually situated low in dense vegetation, constructed from grasses, bark, and leaves, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
35. Cape May Warbler
Cape May Warblers migrate through Iowa during their spring and fall migrations, typically observed from May to June and August to September. They occur in up to 3% of checklists during migration.
Cape May Warblers have a distinctive appearance, with olive-green upperparts, yellow underparts with streaking, and a rusty-colored crown and cheek patch.
Setophaga tigrina
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)
These warblers breed in the boreal forests of Canada and Alaska. During migration, they can be found in various parts of the United States.
Cape May Warblers inhabit a range of habitats, including coniferous forests, orchards, and shrubby areas, where they actively forage for insects, often probing flowers for nectar.
Cape May Warbler Song:
Credit: Christopher McPherson, XC677558. Accessible at www.xeno-canto.org/677558.
Nests of Cape May Warblers are usually situated high up in coniferous trees, constructed from twigs, grasses, and bark, and lined with finer materials. They lay around three to five eggs, which hatch after approximately two weeks. The young birds leave the nest within ten days.
These are the 35 species of warblers that can be observed in Iowa, each with its unique characteristics and migratory patterns. Happy birdwatching!
Discovering the Occurrence of Warblers in Iowa Throughout Summer and Winter
In the quest for information regarding the prevalent warbler species found in your state, perusing checklists proves to be an invaluable resource. These meticulously curated lists exhibit the warblers most frequently sighted in Iowa during the summer and winter seasons, as documented on ebird.
Warblers Spotted in Iowa During Summer:
- The Common Yellowthroat, holding a substantial share of 36.8%.
- The American Redstart, accounting for 21.6% of the sightings.
- The Yellow Warbler, observed in 21.3% of cases.
- The Yellow-rumped Warbler, comprising 11.3% of recorded instances.
- The Tennessee Warbler, noted in 9.1% of sightings.
- The Nashville Warbler, making appearances in 8.0% of encounters.
- The Black-and-white Warbler, with a representation of 6.5%.
- The Palm Warbler, sighted in 5.8% of instances.
- The Ovenbird, appearing in 5.7% of reported sightings.
- The Northern Parula, observed in 4.9% of recorded encounters.
- The Chestnut-sided Warbler, with a contribution of 4.8%.
- The Magnolia Warbler, accounting for 4.4% of appearances.
- The Northern Waterthrush, documented in 3.9% of sightings.
- The Orange-crowned Warbler, holding a share of 3.6%.
- The Blackpoll Warbler, with a representation of 3.5%.
- The Wilson’s Warbler, observed in 3.5% of cases.
- The Golden-winged Warbler, comprising 2.6% of recorded instances.
- The Blackburnian Warbler, making appearances in 2.6% of encounters.
- The Black-throated Green Warbler, noted in 2.3% of sightings.
- The Blue-winged Warbler, with a representation of 2.1%.
- The Prothonotary Warbler, sighted in 1.8% of instances.
- The Canada Warbler, appearing in 1.6% of reported sightings.
- The Yellow-throated Warbler, observed in 1.4% of recorded encounters.
- The Mourning Warbler, contributing 1.3%.
- The Cerulean Warbler, making appearances in 1.3% of sightings.
- The Louisiana Waterthrush, with a share of 1.2%.
- The Kentucky Warbler, accounting for 1.1% of appearances.
- The Yellow-breasted Chat, observed in 1.0% of cases.
- The Bay-breasted Warbler, comprising 0.8% of recorded instances.
- The Cape May Warbler, making appearances in 0.8% of encounters.
- The Pine Warbler, noted in a mere 0.2% of sightings.
- The Connecticut Warbler, with a representation of 0.2%.
- The Hooded Warbler, sighted in 0.2% of instances.
- The Worm-eating Warbler, contributing a mere 0.1%.
- The Black-throated Blue Warbler, observed in less than 0.1% of cases.
Warblers Spotted in Iowa During Winter:
- The Yellow-rumped Warbler, observed in 0.5% of cases.
- The Orange-crowned Warbler, observed in less than 0.1% of cases.
- The Black-throated Blue Warbler, observed in less than 0.1% of cases.
- The Northern Waterthrush, observed in less than 0.1% of cases.
- The Common Yellowthroat, observed in less than 0.1% of cases.
- The Nashville Warbler, observed in less than0.1% of cases.
- The Palm Warbler, observed in less than 0.1% of cases.
- The Cape May Warbler, observed in less than 0.1% of cases.
- The Pine Warbler, observed in less than 0.1% of cases.
Methods to Attract Warblers to Your Backyard
Although warblers may not flock to backyard feeders as commonly as other melodious songbirds, you can employ various techniques to entice these enchanting creatures to grace your yard:
1. Provision of Trees:
If your yard boasts a sufficient expanse, ensure the presence of trees, as warblers find solace in these arboreal havens.
2. Embrace Natural Chaos:
Resist the urge to maintain a meticulously tidy yard. Leave brush piles intact, creating a friendly habitat for insects—a crucial component of warblers’ diet.
3. Mindful Pest Control:
Refrain from utilizing pesticides or herbicides. By doing so, you preserve the availability of insects, which warblers rely upon, while ensuring that birds do not inadvertently consume harmful substances.
4. Clean Water Source:
Offer a clean water source within your yard. Warblers, like many avian species, appreciate a refreshing drink or a dip to rejuvenate themselves.
5. Delectable Mealworms:
Present mealworms as an enticing treat for warblers. Ideally, live mealworms are preferable, but dried ones can also suffice if the former is unattainable.
6. Bird Feeders with Tempting Fare:
Set up bird feeders stocked with sunflower seeds, peanut hearts, and suet—a delectable combination certain to entice warblers and cater to their dietary preferences.