The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

Flying over the massive iceberg, it's indistinguishable from the horizon. But as it melts, chunks of ice risk floating ...

Barn swallows are migrating back to Central Texas, and while they provide an ecological service by eating insects, their mud ...

"On a big night in the spring, you're talking 450 to 500 million birds flying under cover of darkness." For the most part, birds aren't at the Northeast yet, as it's the very beginning of our ...

WHITE PELICANS (Pelecanus erythrorhynchos) are a normal springtime sighting of big birds as the spring season continues to ...

“On a big night in the spring, you're talking 450 to 500 million birds flying under cover of darkness.” In the contiguous United States, peak spring bird migration runs approximately between ...

Guest stars: These San Bernardino flying squirrels are nicknamed Fiona and Fast Freddie, and they are scavenging for food scraps at the nest. The species: These critters are named for their habitat of ...

San Bernardino flying squirrels nicknamed Fiona and Fast Freddie have made regular cameos on Jackie and Shadow's nest cam feed. A spinoff, anyone?