Black-and-white Warbler Identification, All About Birds, Cornell
One of the earliest-arriving migrant warblers, the Black-and-white Warbler’s thin, squeaky song is one of the first signs that spring birding has sprung. This crisply striped bundle of black and white feathers creeps along tree trunks and branches like a nimble nuthatch, probing the bark for insects with its slightly downcurved bill. Though you typically see these birds only in trees, they build their little cup-shaped nests in the leaf litter of forests across central and eastern North America.
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Black-and-white Warbler Identification, All About Birds, Cornell Lab of Ornithology
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White-crowned sparrow - Wikipedia
Black-and-white Warbler (Mniotilta varia)
What is the name of the bird that has a small black body with bright blue wings and a white colored neck or part of its neck? - Quora
Bird Research – Hubbard Brook Field Ornithology Program
