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The Screaming Cowbird (Molothrus rufoaxillaris) is a brood parasite bird belonging to the Icteridae family of birds. It is found in South America.

Description
The screaming cowbird is black with blue iridescence apart from the rufous underwing coverts which are rarely seen. The male is 20cm with an average weight of 58g. The female is marginally smaller.

Distribution
The screaming cowbird occurs in South America in Argentina, Paraguay, Uraguay, Bolivia and Brazil. Like other cowbirds it is associated with grazing stock such as cows and feeds on the invertebrates that are disturbed during grazing.