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

There are eight species of swallows in North America with seven species in Montana. The cave swallow is mostly found in Texas and Mexico. Tree, violet-green, northern rough-winged, bank, barn, ...

Many swallows are amongst the first birds to arrive each spring, and the first tree swallow is often seen in Western North Carolina as early as the first week of March, while the first barn and ...

What turns on a tree swallow may someday help people fight off diseases. The better looking a male tree swallow is, the more effective his immune genes are, and the more likely his offspring will ...

Last week I wrote about the tree swallow spectacle on Plum Island. Their numbers continue to build, and one has to be careful when proceeding down the island, driving slowly to avoid collisions ...

Duluth researchers check tree swallow eggs, chicks for 'forever chemical' toxicity The EPA project has 300 swallow houses up around Duluth and Boulder Lake to study PFAS impacts.

Fringe TheatreIn a way, this incident is a perfect illustration of what An Oak Tree is dealing with, and Crouch dealt with it beautifully before his actual foil, in this case actress Aoife Duffin ...

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.