Tag: wintering grounds

Eastern whip-poor-wills are declining in some of their breeding grounds in the Midwestern U.S., and biologists haven’t been sure why. They thought the problem might lie in their wintering grounds,...

The number of monarch butterflies landing on their wintering grounds in central Mexico in 2020 has dropped by about 26% from the previous year. Rather than counting individual butterflies, researchers...

After placing geolocators on prothonotary warblers (Protonotaria citrea) in a number of states, researchers found that wherever the birds depart from, most travel to northern Colombia for the winter. “This...

Common nighthawks (Chordeiles minor) have declined about 80 percent since 1968, but researchers hadn’t yet known where they go for the winter — information that could be important in understanding...

Bobolinks (Dolichonyx oryzivorus) travel 12,000 miles each year to their North American breeding areas, where they have experienced habitat loss and degradation for decades. The declining grassland bird may also...

In southern New England, eiders winter at the same sites every year, choosing habitats with shallow water and hard bottoms close to the shore, a recent study from Rhode Island...