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Brown-headed cowbird (immature)

Molothrus ater


On the left is the immature brown-headed cowbird and on the right is its foster mother, a female house finch. Cowbirds do not build their own nest but put their eggs in a nest of a surrogate parent for them to raise. They can lay eggs in the nests of more than 220 species of birds. However, a female cowbird may specialize on one particular host species.


Look for Brown-headed Cowbirds in fields, meadows, and lawns. They generally avoid forests. This particular immature cowbird with its foster mother was spotted in a field at Kinder Farm Park in Millersville, Maryland.

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Spotted by

Maryland, USA

Spotted on Sep 6, 2015
Submitted on Sep 7, 2015

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