Agelaius
Agelaius is a genus of blackbirds in the New World family Icteridae. Established by Louis Jean Pierre Vieillot in 1816, it contains five species:
| Image | Scientific name | Common Name | Distribution |
| Agelaius phoeniceus | Red-winged blackbird | North and much of Central America | |
| Agelaius assimilis | Red-shouldered blackbird | Cuba | |
| Agelaius tricolor | Tricolored blackbird | Pacific coast of North America, from Northern California in the U.S., to upper Baja California in Mexico. | |
| Agelaius humeralis | Tawny-shouldered blackbird | Cuba and Haiti | |
| Agelaius xanthomus | Yellow-shouldered blackbird | Puerto Rico |
The name Agelaius comes from the Greek agelaios, meaning "gregarious".