This data set concerns the possible effects of brood parasitism on the species composition of a songbird community. Your instructor will give you directions about using this file to make figures ...

The brown-headed cowbird (Molothrus ater) in North America is an obligate or generalist brood parasite of over 200 songbirds. Numerous studies show reproductive losses for individual host species (e.g ...

Brown-headed cowbirds are plain Janes in the birding world, brown on brown. They don't look like much, but cowbirds are nonetheless impressive. They found a clever solution to a serious problem. Once ...

While the brown-headed cowbird is native to North America, it is a much worse villain than the European starling — an invasive species that has expanded like wildfire in the U.S. since it was ...

Several people reported a strange sight at their feeders this past week. In all cases, a small bird was busily feeding a much larger begging bird. The smaller bird was indeed the parent. Unfortunately ...