Wilson's Warbler

Warblers

Wilson's Warbler

Cardellina pusilla

Summer

Warblers

Wilson's Warbler

Daniel Fitzgerald

Wilson's Warbler

Breeds in moist undergrowth and dense second-growth habitats, especially in or near riparian thickets.

Olive-green back, wings and tail; yellow below; males have a black crown. Females have black, beady eye, and lack wing bars and tail spots (compare with Yellow Warbler).

May breed in loose colonies. Nests on the ground, where it builds a bulky, cup-shaped structure. Invertebrates and occasionally berries constitute its diet.



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