Illinois Featured Content

  • Juvenile cowbirds sneak out at night, study finds

    Nov 2, 2015 8:30 am by Diana YatesResearch
    image of Illinois Natural History Survey avian ecologist Jeff Hoover and INHS biological surveys coordinator Wendy Schelsky, by L. Brian Stauffer

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    • image of Illinois Natural History Survey avian ecologist Jeff Hoover and INHS biological surveys coordinator Wendy Schelsky, by L. Brian Stauffer

    The study found that cowbird juveniles leave the host parents at dusk and spend their nights in nearby fields, returning just after daybreak.