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Wilson's Warbler

Wilson's Warbler (Cardellina pusilla)

Warblers Uncommon Fall and Spring
Wilson's Warbler

Wilson's Warbler, male - Mojave Desert, CA
© Tom Benson

Wilson's Warbler

Wilson's Warbler, female - CSU San Bernardino
© Tom Benson

The Wilson's Warbler is an uncommon spring and fall migrant on campus in April-May and August-October. It is a common spring and fall migrant in southern California, and is an uncommon breeder in the mountains during summer. The sycamore trees that line the front of campus are often the best places to find flocks of migrant warblers.

High Count: 6, Average Count: 1-3

Wilson's Warblers can be identified by their completely bright yellow bodies with glossy black caps. Some females or immature males may lack the black cap.