One summer, Swedish ornithologists attached tiny tracking devices to ten Great Snipes. A year later, they found that one bird had flown from Sweden to Central Africa, a distance of 4,225 miles, in just three and a half days. Several bird species are known to fly faster than 60 miles per…

Willow Flycatchers arrive later than most other migrants, usually at the end of May. They're coming from South America, a long way to fly for a bird that weighs less than half an ounce. A male Willow Flycatcher aggressively defends its territory against other males and soon attracts a mate…

When male and female Ruddy Ducks meet on their breeding grounds, the male gets right to strutting his stuff. The male raises his tail and his head, until his feathers look like horns. He inflates his neck and, faster and faster, strikes his chest with his bill. These blows cause the water…

The Long-billed Curlew is North America's largest shorebird, seen here in its breeding habitat, a western grassland. They may be the largest, but they're also among the rarest. Their numbers are declining as arid grasslands disappear. Because curlews depend on very different environments…

A century of logging and fire control has taken its toll on the mature pine forests of the West, the preferred nest site for this Lewis's Woodpecker. But there is hope. Lewis's Woodpeckers also nest along rivers in large cottonwoods, trees of little value for timber. Also, many remaining…

Two herons, one dark, the other white, feed at the edge of a wooded pond in the South. Both birds are Little Blue Herons. What's going on here? Well, the white bird is a juvenile. These young herons forage with flocks of Snowy Egrets, which stir up prey. The white immatures mix readily…

Most bird species in North America mate for a single breeding season. Some may team up again the following year, just because both stay in - or return to - the same territory. Fewer than one-fifth of Song Sparrow pairs are reunited. Hawks, eagles, and ravens have wide territories, thus few…

If it weren't for birds, how many of us would take notice of the natural world? Birds are all around us. In our back yards or driving across country, most of the animals we see are birds. Many draw attention with their songs. Some birds hunt on the wing, and you'll see one if you watch the…

The Mississippi Kite is one of America's most elegant raptors. These dove-gray birds spend the summer hunting over plains and woodlands in the southern United States. They often nest colonially — unusual for hawks — with a half-dozen pairs in sight of one another in a grove of tall trees…

It's April, but Great Horned Owls have been busy at their nests for two months. Golden Eagles are on their nests as early as the beginning of March. And Red-tailed Hawks (like this one) begin early, too. Why do these birds of prey nest so early? It takes a long time to raise a baby hawk or…