Young male Song Sparrows learn about 10 songs from adult tutors - sometimes from their fathers, but not always. And they learn in stages: 1) "subsong," when the birds babble in a quiet and unstructured way; 2) the "plastic" stage, which contains recognizable adult syllables but is still…

Ospreys nest near water in a tall tree or on a tower, where they're exposed to the elements, including direct sunlight which can sometimes produce scorching temperatures. At other times, they're pounded by rain, as they protect their young. When the storm's over, it's back to feeding those…

In the southeast corner of Arizona, the roads are dusty, the mesquites scraggly. But in the middle of it all is a dense grove of trees with lush, green foliage. It’s an oasis of sorts, made possible by what in the Southwest is called a tank – short for stocktank or watering tank. A rickety…

Dan Harville has banded more than 11,000 hummingbirds! He affixes a tiny aluminum ring bearing a unique number around the lower part of the bird's left leg. That number will provide vital information to any bander who recaptures it. From the work of the banders, we know that a Rufous…

The Palouse country in southeastern Washington features rolling hills, fertile soils, and grassland birds like this Western Meadowlark, which nests in native vegetation between wheat fields. Horned Larks are less choosy, nesting in the wheat fields and fledging their broods before harvest…

Frank M. Chapman, born in June, 1864, was the father of the Audubon Christmas Bird Count. He became Curator of Birds at the American Museum of Natural History. The author of many books, Chapman carried on an active program of field research in Central and South America. And his choice for…

In April 1778, the explorer James Cook and his crew spent most of the month at anchor in Nootka Sound, off present-day British Columbia. The native people were eager to trade with the Englishmen. According to the British ornithologist Thomas Pennant, Rufous Hummingbirds were among the…

These Purple-throated Caribs live on many of the Antillean Islands in the Caribbean. The female’s bill is long and deeply curved. The male’s is shorter and straighter. And this one species of bird has a specialized relationship with two different species of flowering Heliconia plants. When…

Some birds have a remarkable knack for staying out of sight. Often we don’t know they’re nearby, until they sing. But with a little practice, we can learn to identify birds without seeing them. Listen to the songs of the Song Sparrow, the Chipping Sparrow, and the White-throated Sparrow —…