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Species: The Blue-winged Warbler (Dendroica castanea) is more likely to be found on older farmlands, where the fields have been over grown by trees, in bushy meadows or along the edges of second growth forest. This warbler is known to hybridize with the Golden-winged Warbler, producing two recognized hybrids known as the "Brewster's Warbler" and the "Lawrence's Warbler". Both hybrids' off-springs over a number of years, through breeding will return back to one of the original two bird species. At this time the Blue-winged Warbler's breeding range is moving farther north-east each year into the Golden-winged Warbler's breeding territory.
Distinctions: The male has a bright yellow head, throat and breast. Its under tail area is a yellowish-white. The nape and back is olive green, bluish-black wings and tail feathers. It has a very distinguish bold eye line, starting from the bill to beyond the back of its eyes. The female and the juvenile bear resemblance to the male, except in duller colours. Showing maybe darker green cap, nap and back. Other similar warblers are the Yellow Warbler and the Prothonotary Warbler, both birds have large amount of yellow plumage showing.
Voice: Single call note, song sound like "seeee-bzzzz, repeated over and over.
Nesting: Three to five white coloured eggs, with brown markings. The nest is usually built at the base of a tree or shrub, or in shrubs low to the ground. Composed of rootlets, leaves, mosses, and lined with fine grasses and hair.
|B L||W W||W||Family||Latin Name|
|4.75" 12cm||7.5" 19cm||0.35oz 9.9g||Parulidae||Vermivora cyanoptera|
Distribution: Found from the north-eastern states bordering into Canada, through southern Ontario, westward bordering the southern side of the Great Lakes as far as Minnesota, south to Oklahoma, east through the northern half of Mississippi and Georgia, north-eastward to New Jersey and along the Atlantic coast.