Wilson’s Warblers are tiny birds with vibrant plumage. They breed in open meadows in most of Canada, Alaska, and along the Pacific coast.

Wilson’s Warblers are small, rounded birds with vibrant yellow bodies and heads. Their wings have a gray tint. Males have a rounded black “cap” on their heads. Females may also display a cap. As with the Orange-crowned Warbler, Wilson’s Warblers of western North America have more vibrant plumage than their eastern counterparts.

When banding Wilson’s Warblers, we measure the length and extent of their  black crown feathers to help determine their age and sex. In the springtime, we capture most of our Wilson’s Warblers as they migrate through in mid-May, while in the fall most come through in the first half of August. At Creamer’s Field Migration Station, we have captured about 3,000 individuals since 1992.