Wilson's Warbler — Cardellina pusilla

Order Passeriformes
Family Parulidae
Genus Cardellina (previously Wilsonia)
Species pusilla
A warbler with an olive back and yellow underneath and a round black cap. The female and immature do not show traces of the black cap. They are often found in thickets near wooded streams, moist tangles, low shrubs, willows and alders. This warbler nests in Canada and winters mainly in Mexico to Panama. It is a late spring migrant.

Birds of the Arboretum

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Photo by Diane Lepkowski

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Photo by Benjamin Shirkey

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Photo by Marshall Faintich

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Photo by Lynn Whitmore