The Washington Gap Analysis Project created breeding bird maps only. The non-breeding birds (e.g., wintering, pelagic (coastal), and birds expanding their ranges) are represented only by NatureMapping sightings. This species is listed in Washington State because of rare appearances.
The Washington Gap Analysis Project could not find any historical research records (i.e., Breeding Bird Atlas, Breeding Bird Survey, Bird Banding and Recovery) for 73 species of birds. The Cape May Warbler is one of the species.
NatureMapping observations reported by townships throughout the year.
This warbler winters chiefly in the West Indies, and a few winter in southernmost Florida. It is rare in Texas in migration and casual throughout the west. The breeding range is from Alberta east across Canada. One Audubon sighting in Washington, at Bellingham in September 1974.Text edited by Gussie Litwer