birds
Black Swift - Montana Field Guide
Black Swifts are the largest of the swifts in North America. They are over 7 inches in length and have wingspans up to 18 inches. As the name implies, Black Swifts ...
Black Swift: Bird of the Month - Smithsonian Migratory Bird Center ...
Learn things about the Black Swift that you won't find in the standard field guide.
American Black Swift - Wikipedia, the free encyclopedia
The American Black Swift or more simply Black Swift (Cypseloides niger) is found from northern British Columbia in Canada through the United States and Mexico to ...
Science: Special Species: Black Swift
In the summer breeding season, Black Swifts have a large distribution throughout North America. They can be found south to Central America ...
Audubon WatchList - Black Swift
Black Swift (Cypseloides niger) This is the only large Cypseloides swifts known to occur north of Sinaloa, Mexico. In most regions where it occurs it is rather ...
Black Swift | National Audubon Society Birds
This is the only large Cypseloides swifts known to occur north of Sinaloa, Mexico. In most regions where it occurs it is rather uncommon and local but in its British ...