Yellow-crowned Night-HeronNyctanassa violacea
22-27" (56-69 cm). W. 3'8" (1.1 m). Medium-sized heron. Adult slate-gray with black head, white cheeks, yellowish crown and plumes, black bill, and yellow or orange legs. In flight, feet and part of legs extend beyond tail. Immature grayish brown, finely speckled with white above. Young Black-crowned Night-Herons similar but browner, with legs and feet that scarcely project beyond tail in flight.