Learn how to identify a male and female tree swallow. Find out about their nests, song, range map and what tree swallows eat.

From purple martins to barn swallows, find out how to spot and identify 8 members of the swallow bird family during summer.

One warm and muggy morning on my walk, I notice swallows gathering on overhead power lines. The pair closest to me are northern rough-wings, and they are well into the throes of courtship: she, ...