Learn facts you need to know about a swift bird. These airborne birds can’t sit still. Get facts about swift nests, range and ...
He and the biologists hope to catch a black swift, and the conditions don’t look promising. Black swifts, Cypseloides niger, are among the most enigmatic birds in North America. Though the ...
Previously, scientists thought these birds and another bird species, known as swift birds, only remained aloft for many days at a time. SEE ALSO: 31 scientific societies just told Congress to take ...