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The Tennessee warbler has long wings, short tail and a thin, pointy bill. Juveniles and first-year birds are quite similar to the female. In winter and fall, adult male resembles juvenile and spring adult female but shows more yellow below: the grey neck and crown turn into an olive green while the underside takes a yellow hue.
The Nashville warbler (Leiothlypis ruficapilla) is a small songbird in the New World warbler family, found in North and Central America. It breeds in parts of the northern and western United States and southern Canada, and migrates to winter in southern California and Texas , Mexico, and the north of Central America.
Females and immature birds have bluish-green upperparts, a pale stripe over the eye, no streaking, and are yellow below. All have two white wing bars and a thin, pointed bill. The cerulean warbler is insectivorous and predominantly feeds on insect larvae, though it also takes winged insects. It forages for prey and nests high in forest canopies.
Western birds are yellower than eastern birds. Orange-crowned warblers are distinguished by their lack of wing bars, streaking on the underparts, strong face marking or bright colouring, resembling a fall Tennessee warbler and a black-throated blue warbler, both of which are also members of the New World warbler family.
Wilson's warbler is an insectivore, feeding primarily on insects gleaned from leaves and twigs, or caught by flycatching. [14] Some of these insects include beetles, bees, or caterpillars. Wilson's warbler is an active forager, moving rapidly through shrubs, on the ground, and sometimes in taller trees during the winter. [12]
The two chicks were subsequently "adopted" by a male black-and-white warbler, which fed the fledglings for 23 days until they reached independence. [21] Golden-winged warbler nests are frequently parasitized by brown-headed cowbirds; up to 30% of golden-winged warbler nests may be parasitized in habitats they share with cowbirds. [22]
Immature warblers also resemble the same dull coloration of the females. [6] The yellow and black-striped stomachs help one to distinguish the males from other similar birds, like the prairie warbler and Kirtland's warbler (which, however, have a breeding range to the south and east of the magnolia warbler's).
Immature Connecticut warblers also have a whiter chest compared to the yellow chest on immature Mourning warblers. Nashville warblers are also commonly confused; however they have a yellow throat unlike the black or grey throats of Mourning warblers, females have a grey back, and they are smaller and less active than Mourning warblers.