Every spring I get reports from astonished readers describing a small bird feeding a much larger, obviously begging chick. Can you explain this, readers ask. The answer is “brood parasitism.” ...
Female brown-headed cowbird (Molothrus ater) singing at Jamaica Bay Wildlife Refuge near New York City. (Credit: Rhododendrites / CC BY-SA 4.0) Brown-headed cowbirds, Molothrus ater, are fascinating ...
A male cowbird's female-directed display usually consists of little more than a puffing of the feathers and a song. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...
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