Sure, these birds are hardy enough to get through a few cold days — even days with snow flurries — but there is a cumulative ...

A male tree swallow gives a good yawn in the early morning light. This photo shows how wide a swallow can open its mouth when trying to capture flying insects. Credit: PHOTO BY BILL DANIELSON One of ...

The annual swallow show is ramping up on Plum Island! Plentiful fruit and insects on the Parker River Refuge attracts tens of thousands of swallows in mid-August, and this birding spectacle is one ...

ITHACA, N.Y. – Warming temperatures from climate change cause tree swallows to nest up to two weeks earlier than they did in the 1970s, but early spring cold snaps can hinder nestlings’ growth and ...

One of the great joys of spring is the first appearance of the tree swallows. In my yard, this event almost always occurs in the first week of April; this year was no exception. It was a close call, ...