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

Wind and precipitation play a crucial role in advancing or delaying the breeding cycles of North American tree swallows, according to the results of a new CU Boulder-led study. The research, which ...

SAUKVILLE – Prairies are rich wildlife habitats. They are so bountiful, in fact, sometimes they even host species that evolved to breed elsewhere. For proof we need only look at two restored ...

Wind and precipitation play a crucial role in advancing or delaying the breeding cycles of North American tree swallows, according to the results of a new University of Colorado Boulder-led study. The ...

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

Wind and precipitation play a crucial role in advancing or delaying the breeding cycles of North American tree swallows, according to the results of a new study. Wind and precipitation play a crucial ...