Brash, bright and large blackbirds . Numerous in west of the Mississippi. Timing: summer west of the Mississippi; winter in west Texas and Southwest . Prefers freshwater wetland with emergent vegetation; large open agricultural fields in winter. Large with a long and pointy bill; plumage is black or brown with yellow head. Large, rolling flocks in winter in agricultural fields. Displace Red-wing Blackbird and Marsh Wren in breeding sites. One male defends a territory for up to 8 females, who build the nests and largely care for young. Nests overhang water. . Diet includes insects; seeds in winter. Oldest wild individual recorded was 9; one captive bird lived to 16.
Population ~ 9 million.