Small warbler with a small, thin bill and beady black eye. Entirely yellow below with an olive back. Adult males have a black cap.
Small warbler with a small, thin bill and beady black eye. Females and immatures have an olive crown. Some females show a small black cap.
Entirely yellow below with an olive back. Adult males have a black cap.
Females and immatures have an olive crown, but some females can have a small black cap. Note small patch of black feathers on the crown of this individual.
Small entirely yellow warbler save for the black cap on adult males. Spends most of its time in the understory.
Breeds in wet meadows and thickets near streams, especially those with willows and alders. Also found in aspen stands and young stands of evergreen trees.
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Wilson’s Warblers are one of our smallest warblers. They have long, thin tails and small, thin bills. They appear rather round bodied and large headed for their size.
Larger than a Ruby-crowned Kinglet, smaller than a Common Yellowthroat.
sparrow-sized or smallerWestern populations tend to be brighter yellow than Eastern populations.
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