Brewer's Blackbird
Brewer's Blackbird
During the breeding season, small groups of Brewer's Blackbirds form small colonies. When their young are ready to fly, these small colonies join other colonies of Brewer's along with flocks of other birds such as the Red-Winged Blackbirds, Cowbirds and European Starlings. This huge flock can number into the tens of thousands creating a river of black in the air.