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cliff swallow

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Young Cliff Swallows

Young Cliff Swallows

Young cliff swallows in their nest

Cliff Swallow

Cliff Swallow

Cliff Swallows build their mud nests on cliff faces and other vertical surfaces in colonies containing hundreds of other birds. The pair works together, gathering pellets of wet mud in their beaks and laying th... More

Juvenile cliff swallow

Juvenile cliff swallow

Cliff swallow; Neal Herbert; August 2014; Catalog #19687d; Original #3638

American cliff swallow (Petrochelidon pyrrhonota), Bighorn Canyon National Recreation Area, 2015.

American cliff swallow (Petrochelidon pyrrhonota), Bighorn Canyon Nati...

This colony of cliff swallow nests is found near Ok-A-Beh Marina. Cliff swallows have interesting colony behaviors: within a colony, some swallows lay eggs in other swallow's nests while some swallows lay eggs ... More

Cliff Swallow

Cliff Swallow

A cliff swallow in Yellowstone National Park. (Please include a credit “National Park Service / Jane Gamble” when using this photo.)

Cliff Swallow

Cliff Swallow

Cliff swallow nesting beneath the eave of the outhouse in Yellowstone National Park. (Please include a credit “National Park Service / Jane Gamble” when using this photo.)

Cliff swallow

Cliff swallow

A cliff swallow perches at the entrance of a mud sculpted nest on the side of building.