Noun | 1. | ![]() bird family - a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings Anseriformes, order Anseriformes - ducks; geese; swans; screamers screamer - gooselike aquatic bird of South America having a harsh trumpeting call Anhima, genus Anhima - type genus of the Anhimidae; horned screamers Chauna, genus Chauna - crested screamers |