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Wilson's warbler is a small New World warbler. It is greenish above and yellow below, with rounded wings and a long, slim tail. The male has a black crown patch; depending on the subspecies, that mark is reduced or absent in the female. It breeds across Canada and south through the western United States, and winters from Mexico south through much of Central America. It is a very rare vagrant to western Europe.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
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Wilson's warbler is a small passerine, ranging from 10 to 12 cm (3.9 to 4.7 in) in length, with a wingspan of 14–17 cm (5.5–6.7 in) and a mass of 5–10 g (0.18–0.35 oz). It has a plain green-brown back and yellow underparts. The male has a small black cap. Males of the western race C. p. chryseola are greener above and brighter than males of the eastern, nominate race. Individuals from Alaska and the west-central portion of the species' range average slightly larger than those found in eastern and Pacific coastal populations. Its song is a chattering series of loud descending notes.
Text from Wikipedia, licensed CC BY-SA 4.0.
What the Wilson's Warbler sounds like
Where the Wilson's Warbler lives
Recorded as a rare visitor in Portugal, United Kingdom, Ireland.
When to see the Wilson's Warbler
Peak activity in May · a passage migrant species across most of its range
Easily confused with
Canada WarblerCardellina canadensisThe Canada warbler is sometimes called the "necklaced warbler", because of the band of dark streaks across its chest.
Red-faced WarblerCardellina rubrifronsThe red-faced warbler is a species of New World warbler.
Red WarblerCardellina rubraThe red warbler is a small passerine, measuring 12.5–13.5 cm (4.9–5.3 in) in length, and weighing from 7.6 to 8.7 g (0.27 to 0.31 oz).
Side by side: Canada Warbler vs Wilson's Warbler
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