Where have the birds of summer gone? The Swainson's Thrush is wintering in Central or South America, maybe as far south as Bolivia. Warbling Vireos are now spread through much of Central America, while Black-headed Grosbeaks have migrated to Mexico. This Orange-crowned Warbler also makes…

Long-distance migration can be hard on a bird’s body. For example, this Swainson’s Thrush might migrate between northern Canada and South America, twice a year. In the weeks before such a long journey and during key stopovers en route, the thrush eats like crazy to put on fat. But during…

The Northern Goshawk is one of the most fearsome and admired of all birds of prey — and the largest hawk of the northern forest. Since at least medieval times, falconers have regarded the goshawk as a bird of great distinction. Attila the Hun even wore its image on his helmet. The boreal…

The males and females of many bird species, like these Blue Jays, look identical. And crows, which at least to our eyes, are all the same color and size. But even if we can’t tell male from female, the birds can. Scientists believe crows may be able to tell each other apart by slight…

The Pileated Woodpecker makes loud, hard whacks, as it leans back and then slams its bill into the side of a living tree. Sounds painful, if not downright disabling! How does the woodpecker's brain withstand it? All woodpeckers have an enlarged brain case, so the brain sits above the level…

There’s at least one bird that nearly everyone knows on sight: Big Bird. He’s been a Sesame Street celebrity since 1969, cutting a colorful figure for pre-school fans and their parents across the world. Big Bird is really a big kid with a kind heart, who makes friends everywhere he goes…

It can be confusing to buy truly free-range chicken and eggs at the grocery store. The next time you’re at the store, take a close look at the labels. Chickens raised for meat or eggs... chickens that spend their days outside pecking for bugs, grubs, and fresh green vegetation... are best…

Eclectus Parrots are big, loud, colorful parrots native to the lowland rainforests of New Guinea and northern Australia. The female (seen right) and the male are so different, they were once thought to be two separate species. Such a dramatic sexual contrast in plumage is rare in parrots…

Ospreys may log more than 160,000 air miles over a lifetime. One female Osprey in Massachusetts, which researchers tagged in 2008 and named Penelope, headed south in early September, later reaching the Bahamas. After pausing in the Dominican Republic, she traveled to the Island of Birds…

Across Central and South America, conservationists, teachers, and researchers are benefiting from groups like Birder’s Exchange, a program of the American Birding Association. The program collects new and used binoculars, scopes, books, and tripods, and passes them on to people working to…