The Collaborative International Dictionary of English v.0.48:
Agelaius \Agelaius\ prop. n. A genus of birds including the red-winged blackbirds. Syn: genus Agelaius. [WordNet 1.5]WordNet (r) 3.0 (2006):
Agelaius n 1: red-winged blackbirds [syn: Agelaius, genus Agelaius]