Description

5-6 1/4". Sparrow-sized. The only swallow in the East with metallic blue or blue-green upperparts and clear white underparts. Young birds are dull brown above, but distinguished from Bank and Northern Rough-winged swallows by their clearer white underparts.

Voice

Cheerful series of liquid twitters.

Habitat

Lakesshores, flooded meadows, marshes, and streams.

Nesting

4-6 white eggs in a feather-lined cup of grass placed in a hole in a tree or in a nest box.

Other

Other