Tallinn residents are spotting unusually large numbers of swallows and swifts this summer, a surge bird ecologist Marko Mägi ...

Something is causing tree swallows across North America to shrink, and scientists tracking nearly 50 years of data just ...

A groundbreaking study reveals a stark 60% decline in insects at Canada's Long Point Bird Observatory since the 1970s, ...

Here are examples of nests in which they raise their young. Barn and cliff swallows build cup-shaped nests of mud under eaves, rafters, and bridges. Tree and violet-green swallows occupy tree-hole ...

Small birds have explored a wide variety of styles of flight, ranging from hovering hummingbirds to bounding sparrows to soaring swifts and swallows. A new Cornell University study could explain why.

Add Yahoo as a preferred source to see more of our stories on Google. Meet different types of swallow birds you should know. Plus, learn about the significance of swallow sightings. Adult tree swallow ...