Brown-headed Cowbird Molothrus ater

Stout bill. Short tail and stocky body. Males are glossy black with chocolate brown head. Females are gray-brown overall, without bold streaks, but slightly paler throat. Juveniles streaked brown. Found in open woods, farmland, and stockyards. Forages by walking on the ground. Often in flocks with other blackbirds in winter. Visits feeders. Unpopular due to their parasitic habit of laying eggs in nests of other birds.