Screaming Cowbird
NameScreaming Cowbird
Common NameScreaming Cowbird
Scientific NameMolothrus rufoaxillaris
FamilyIcteridae
Wingspan (cm)29
Length (cm)20
Weight (g)45
Plumage DetailsAdult males are entirely glossy black with a purplish-blue sheen, especially noticeable in good light. Females are similar but generally duller black. A key feature, though often hidden, is the reddish-brown underwing coverts.
Vocalization / CallIts vocalizations are distinctive and harsh, often described as a loud, drawn-out 'scree-ee-ee-ee' or 'chree-ee-ee-ee', which gives the bird its common name.
Primary Dietomnivore
Primary Habitatsgrassland, forest, urban
Conservation Statusleast-concern
Geographic RangeFound in central and eastern South America, including parts of Brazil, Argentina, Uruguay, Paraguay, and Bolivia.
Identifying FeaturesAll-black plumage with purplish sheen, Reddish-brown underwing coverts (often not visible), Harsh, screaming call, Brood parasitic behavior
Description
The Screaming Cowbird is a medium-sized, all-black passerine native to South America. It is a brood parasite, primarily targeting the nests of Bay-winged Cowbirds, and is known for its distinctive harsh vocalizations.
