Warbler hybrid matched trait diagram (IMAGE)

Penn State

Warbler hybrid matched trait diagram

Caption

Golden-wing warbler, blue-wing warblers, and the hybrids that result when individuals of the two species breed, typically have matched face and throat traits; they have both a black face mask and black throat patch or neither black trait. However, an extremely rare hybrid (right) carries the black face mask but not the throat patch.

Credit

Illustrations: Liz Clayton Fuller; Photo: David Toews

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