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  • When warblers warn of cowbirds, blackbirds get the message

    Mar 31, 2020 9:00 am by Diana YatesResearch
    Mark Hauber, a professor of evolution, ecology and behavior; with graduate student Shelby Lawson. photo by Stauffer

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    Researchers at Illinois report that red-winged blackbirds respond to the yellow warbler's 'seet' call as if they know that it means a cowbird - a notorious brood parasite - is near.

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