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Swainson's warbler is a small species of New World warbler. It is monotypic, the only member of the genus Limnothlypis. Swainson's warbler was named after William Swainson, an English ornithologist.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
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Swainson's warblers are a small and rather undistinguished songbird, though they are fairly large for a New World warbler. Adults grow to 12.5–16 cm (4.9–6.3 in) in length and 11–20.5 g (0.39–0.72 oz) in weight. The wingspan averages 23 cm (9.1 in). They are a plain olive-brown above and pale yellow-white below. They have a whitish eyebrow stripe that runs above their eye, and the top of their head is a rusty brown. Unlike most other New World warblers that are mostly dimorphic, there is no difference in appearance between a male or female Swainson's warbler.
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
Recorded as a rare visitor in Canada, Colombia, Puerto Rico, Turks & Caicos Islands.
When to see it
Peak activity in April · a variable species across most of its range
Easily confused with
Three-striped WarblerBasileuterus tristriatusThe three-striped warbler measures 13 cm (5.1 in) in length.
Grey-crowned YellowthroatGeothlypis poliocephalaThe grey-crowned yellowthroat is about 14 cm (5.5 in) long and weighs about 13 to 16 g (0.46 to 0.56 oz).
Learn the Swainson's Warbler for real
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