eggs (IMAGE)

University of Illinois at Urbana-Champaign, News Bureau

eggs

Caption

Brown-headed cowbirds lay their eggs in the nests of other bird species, forcing the host parents to raise their young alongside the hosts’ own offspring. Here, a cowbird egg, lower right, sits in a nest with five prothonotary warbler eggs.

Credit

Photo by Nicholas Antonson

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Photo by Nicholas Antonson

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