Night Heron, a heron that feeds at dusk and at night, remaining hidden during the day. Night herons are about 24 inches (60 cm) long. They have stockier bodies than other herons, and shorter necks and legs. The black-crowned night heron is found in temperate and tropical regions throughout the world. It is blackish green on top of its head and on its back. It has gray wings and tail, and a white breast. There are two long white plumes on its nape. The yellow-crowned night heron breeds in the central and eastern United States and winters in south to northern South America. It is bluish gray, with yellowish white crown and plumes.
Night herons belong to the family Ardeidae. The black-crowned night heron is Nycticorax nycticorax; the yellow-crowned, Nyctanassa violacea.