Buzzy, Black and Yellow ... Birds!

Golden-cheeked Warblers, Black-throated Green Warblers, Townsend’s Warblers, and Hermit Warblers share similar songs and plumage. Though they all breed in different areas of North America, they can often be found flocking together on wintering grounds in Central America. Genetic studies have confirmed what their family resemblance suggests: these four warblers are closely related and likely shared a common ancestor before the last Ice Age. And as sister species often do, they all put a unique twist on that bright, buzzy song.

More info and transcript at BirdNote.org.

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