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, ...

DOUG: WE DON’T MEAN TO FREAK YOU OUT LIKE A HITCHCOCK MOVIE THIS MORNING, BUT THIS MORNING’S WAKE-UP CALL COMING TO US FROM THE PARKER RIVER NATIONAL WILDLIFE REFUGE ON PLUM ISLAND. THIS IS A CLOUD OF ...

Tree swallows use behavioral and physiological mechanisms to handle rising temperatures, and their story is an optimistic example of how some species successfully respond to climate change, at least ...