The black swift — which weighs about the same as a golf ball and is small enough to fit in your hand — breeds in the western U.S. and Canada, where it nests in mountainous areas close to ...

“The black swift is a rather scarce species of conservation concern in North America, and investigating its entire annual cycle may help making appropriate decisions, should they be needed ...

He helped organize a new round of black swift surveys in Colorado, inspiring professionals and volunteers, and wrote The Coolest Bird, a book about black swifts and their generations of human fans.

Black swifts descended rapidly during lunar eclipse Date: March 17, 2022 Source: Lund University Summary: An international research team has studied the flight behavior of the mysterious black swift.