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 ...

Bluebirds aren't the only species to use nest boxes! Learn about tree swallows' nesting habits and why you should welcome them to your yard.

Concern about how climate change affects food security usually focuses on agriculture in resource-poor countries. But disruptions to weather patterns threaten food supplies for wildlife too. Walk ...

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, ...

Cliff swallows are said by ornithologists to show the highest degree of colonization of any of the 89 swallow species in the world. Colonies can number from 200 to more than 2,000 nests. They could be ...

The general trend in Marin bird migration is for most of winter’s abundant shorebirds and waterfowl to head north each spring, soon replaced by a variety of mostly insect-eating songbirds from Mexico ...