Other Names: none
Distribution: discontinuously through the northwestern United States in summer; tropical and subtropical coasts of the Americas in winter.
Size: 33-40 cm in length with a 68-74 cm wingspan.
Plumage: Gray-brown overall; whitish spotted with brown in some plumages. May be identified in flight by its flashy black and white wing pattern. The legs and beak are brown and the eyes are black.