Black-crowned Night-HeronNycticorax nycticorax
23-28" (58-71 cm). W. 3'8" (1.1 m). A medium-sized, stocky, rather short-necked heron with black crown and back, gray wings, and white underparts. Bill short and black, legs pinkish or yellowish. In breeding season it has 2 or more long white plumes on back of head. Young birds are dull gray-brown lightly spotted with white. Young Yellow-crowned Night-Herons are grayer, with stouter bills and longer legs.