This article includes a list of references, but its sources remain unclear because it has insufficient inline citations. (January 2017) (Learn how and when to remove this template message)
Euphagus is a small genus of American blackbirds. It contains two extant species: Brewer's blackbird, Euphagus cyanocephalus, and rusty blackbird E. carolinus. A prehistoric relative, Euphagus magnirostris, is known from Late Pleistocene fossils found in the famous tar seeps of Rancho La Brea, California.
|Male Brewer's blackbird|
|Image||Scientific name||Common Name||Distribution|
|Euphagus cyanocephalus||Brewer's blackbird||United States, Canada|
|E. carolinus||rusty blackbird||United States, Canada, Mexico|
They build cup nests, and the female alone incubates the eggs. They are gregarious outside the breeding season.
Both species feed on seeds and insects, the rusty having a particularly high insect component to its diet. The fortunes of the two species are contrasting, with Brewer’s expanding east in the Great Lakes region, while rusty shows a worrying decline in numbers.