Some believe the song of the Wood Thrush to be the most beautiful bird song in North America. Others select the song of the Hermit Thrush. Still others name the singing of the Swainson’s Thrush. How do thrushes like this Veery create such fine music? The answer is that the birds have a…

The Burrowing Owl is most active during the day. It migrates south for the winter and returns each spring to an ever more uncertain fate. The owl is in serious decline, due to intensive agriculture, urban sprawl, destruction of ground squirrel colonies, and elimination of sage habitats…

When it comes to raising a family, American Robins have got it down. Approximately eight days after the male and female mate, the female builds the nest. A few days later, she lays eggs. She sits on the eggs for 18 hours a day, and the eggs hatch in about three weeks. Both parents feed the…

Male hummingbirds — like the Anna's Hummingbird seen here — keep a watchful eye on their territory and will often perch atop a high, bare twig in order to fully view their surroundings. From here, the male hummer will launch himself into the air to perform courtship displays, to chase off…

Ruby-throated Hummingbirds are the only hummingbirds that nest in the Eastern states. Most Ruby-throats spend the winter in Central America. By March, some males are already returning to the Southeast. But it's well into April before they reach the northern states. Female hummingbirds…

The American Bittern, a member of the heron tribe, spends much of its time in the dense cover of the marsh. Although they are found across the country, you'll seldom see one. Bitterns are masters of camouflage. Their striped plumage perfectly imitates surrounding vegetation, and they…

When we watch birds in flight, they’re often seen against a backdrop of clouds. Clouds have many different types and are listed in the International Cloud Atlas. The asperitas cloud was first described by citizen-scientists and has now been incorporated into the official atlas.

Ahhh, the first day of spring . . . at last! And the birds know somethin' is up. Both science and folklore tie Spring to the renewal of nature, as the world awakens from the long cold winter. Here's a Virginia Rail, usually unseen but hardly unheard, ringing in the new season. Spring has…

This aptly named Northern Mockingbird might imitate, in succession, birds as different as a bobwhite quail, a chat, a sandpiper — even a cardinal — then cap it off with the meow of a cat and a few phrases of car alarm. In spring, a male mockingbird sings all day, with hundreds of…

Many scientists believe that the fate of the dinosaurs was sealed when an asteroid struck the earth 66 million years ago. Some dinosaurs survived, and among them were the early ancestors of birds. Recently an international research team sequenced the genomes of 45 birds of diverse lineages…