Cowbird chicks do best with two warbler nest mates -- not four, not zero, study finds Date: September 13, 2022 Source: University of Illinois at Urbana-Champaign, News Bureau ...

Cowbird chicks do best with two warbler nest mates – not four, not zero, study finds Peer-Reviewed Publication. University of Illinois at Urbana-Champaign, News Bureau ...

Because cowbird eggs require a shorter incubation period, and female cowbirds can lay more eggs than most wild birds, their chances of survival in host nests surpass those of the host’s own young.

Many species of birds get reputations of various sorts. One species that gets a bad rap, through no fault of its own, is the brown-headed cowbird. The female cowbird lays ...

The Brown-headed Cowbird lays its eggs in the nests of other birds, a behavior known as nest parasitism. The male has a shiny black body with a dark brown head.

This purple finch nest with four finch eggs and one from a brown-headed cowbird, a notorious brood parasite. Photo courtesy of Tom Tatum Some would-be hosts of the cowbird eggs take matters into ...

Bird eggs sport an amazing variety of sizes, colors, and shapes. Their colors could fill an artist’s palette, from robin's ...

A nest was assaulted. Was it the cowbird or the sparrow? Credit...Michelle Mildenberg Supported by By Daryln Brewer Hoffstot Ms. Hoffstot is a freelance writer living on a farm in western ...