The finches of the Galapagos Islands are famous in the history of evolutionary theory. But Charles Darwin spent four years studying other birds as well, as the Beagle circumnavigated southern South America before reaching the Galapagos in 1835. It was not just the birds, but a lifetime of…

As the sun sets over the Connecticut River, as many as 300,000 Tree Swallows gather on the wing in one huge, tightly choreographed flock. With dusk at hand, the aerobatic flock - now shaped like a tornado - swoops down into the tall reeds. It takes but 15 seconds for the 300,000 birds to…

Some cloudless night in September, when the air is clear, you may see birds flying across the yellow face of the moon! September is peak migration time for millions of songbirds heading south from North America to more tropical latitudes. Nocturnal migrants of the same species, such as…

By this time in September, most migratory birds have departed. Many resident birds remain, but their voices are now quiet. During fall and winter, birds don't need to sing to establish a breeding territory or attract a mate. Many songbirds lose the ability to sing. The part of the brain…

Bird song caught the ear of Italian composer Antonio Vivaldi. And he even named a 1729 flute concerto for a bird — the goldfinch. The source of inspiration for Vivaldi's Goldfinch concerto, or Il Gardellino, was the European Goldfinch, a tiny bird found throughout much of Europe, where it…

David Sibley, creator and illustrator of The Sibley Guide to Birds, offers this advice for learning to identify birds such as this Warbling Vireo: “Spend time at home, paging through the field guide . . . by flipping through the pages of the book and looking at pictures and reading the…

Among the great firs and Ponderosa pines of Stanislaus National Forest in central California, Northern Goshawk nestlings crowd a platform nest of branches and pine needles halfway up a mature fir tree. In 2013, what’s known as the Rim Fire occurred, and some of the area burned with high…

A hike through the mountains of the West, from the lowlands to the rocky alpine zones, reveals an incredibly diverse array of beautiful birds: Swainson’s Thrushes, Pine Grosbeaks, American Pipits and so many more to be found.

Generations of birders have puzzled over how to tell Downy Woodpeckers from Hairy Woodpeckers. The two species’ patterns of black and white feathers are so alike that it was long thought they were the closest of relatives. The two live in similar woods, nest in similar trees, and eat many…

Birds are an inspiration for many musicians. Before writing “The Penguin,” Raymond Scott probably saw these birds at the Central Park Zoo. Though penguins are clumsy on land, Gentoos like the ones pictured here are the fastest of any diving bird, reaching 22 miles an hour. Speaking of…