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  • Female cowbirds pay attention to cowbird nestling survival, study finds

    Researchers observed the results when female cowbirds, left, laid their eggs in the nests of prothonotary warblers, right.

    Photos by Chris Young (cowbird) and Michael Jeffords (warbler)

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  • Editor’s notes:

    To reach Matthew Louder, call 660-441-7509; email mckimlouder@gmail.com.

    To reach Jeff Hoover, call 217-244-2922; email j-hoover@illinois.edu.

    To reach Wendy Schelsky, call 217-333-4712; email schelsky@illinois.edu.

    The paper “A generalist brood parasite modifies use of a host in response to reproductive success” is available online or from the U. of I. News Bureau.