Illinois Featured Content

  • Team cracks eggs for science

    Apr 8, 2021 9:45 am by Diana YatesResearch
    A brown-headed cowbird's three eggs in a prothonotary warbler's nest. Photo by Jeffrey P. Hoover

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    • A brown-headed cowbird's three eggs in a prothonotary warbler's nest. Photo by Jeffrey P. Hoover

    Illinois researchers assess the factors that a bird must overcome to pierce a foreign egg and remove it from its nest. The study is relevant to the hosts of avian brood parasites, which lay their eggs in other birds’ nests.