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

It’s Feb. 20 and the first spring migrant is flying low over the waters of a mountain lake in Transylvania County. The first tree swallow has arrived, but winter has not yet retreated and it’s a ...

A bird in the box is worth two in the bush, Bronx high school students learned this spring. Teenagers from Arturo A. Schomburg Satellite Academy in Longwood worked with Rocking the Boat, a local ...

Tree swallow nests across Pennsylvania are being collected for an investigation into the patterns that the common, fast-flying, cavity-nesting birds might incorporate into their nest construction.

An annual project by the Juneau Audubon Society to provide boxes for tree swallows to nest in the City and Borough of Juneau had a successful year gathering data, even as the population of birds ...

It’s September and that means everyday tree swallows are putting on their spectacular autumnal avian display near the mouth of the Connecticut River. Hundreds of thousands of the birds come from all ...

In March, right before spring break, a couple of Kutztown University bird watchers got together in the biology building to build some bird boxes that could bring more Eastern bluebirds and the elusive ...

Tree swallows fill the sky over the Connecticut River near Haddam, Conn. From late August to early October, as many as a million tree swallows gather on a small island near the mouth of the ...

ON THE LOWER CONNECTICUT RIVER, CONN.—The first swallows appear at sunset, inky flecks in a dusky pink sky. A cloud of birds forms, then another and another. Soon the entire sky is teeming with tree ...

The swallows have started to gather on Plum Island and they will reach their peak by mid-August. Along the Parker River Wildlife Refuge, they feed on the bayberry on the dune side of the road, and the ...

Add Yahoo as a preferred source to see more of our stories on Google. A member of the Trout River Environmental Committee took this photo of tree swallow eggs inside one of the new banding boxes.