The Florida Keys extend from the state's peninsula like a string of pearls, and pearls they are, in their uniqueness and value. Stands of hardwood trees rise above the islands' level ground. These trees draw many birds of the Caribbean to the keys' tropical habitat. One of these is the…

The Secretarybird of sub-Saharan Africa looks like a slim eagle set on the long, slender legs of a crane. Secretarybirds can fly but prefer to hunt on foot, walking over 20 miles a day and dispatching their prey with powerful kicks of their taloned feet.

Social, chatty, ubiquitous, the House Sparrow has adapted to living in cities, suburbs, and rural areas. Like most birds, these sparrows enjoy a daily bath. Set out a birdbath, and you can watch them chatter, splash, and shake, sending droplets flying. Birds like very shallow water; an…

Powerful currents and rocky terrain make for a dangerous place to swim. But for birds like the American Dipper, Harlequin Duck and Torrent Duck, whitewater rapids and fast-flowing streams offer all the comforts of home.

Peer into an owl's face – there is something almost human about its large, forward-facing eyes. The Great Gray Owl, which stands two feet tall and weighs 2 and 1/2 pounds, has eyes larger than those of most humans! Enormous eyes enable owls to see in near darkness. An owl's retinal anatomy…

A bird’s bill is an incredible multi-tool — good for preening feathers, building a nest, self-defense, scratching, displaying, building a nest, and egg-turning. And a bill must be the right size and shape for the bird’s diet, whether that’s probing for worms, cracking open seeds, or…

A male Montezuma Oropendola holds forth in a tree bedecked with twenty or more hanging nests. The nests are intricately woven sacks hanging three feet or more from the branches. Oropendolas favor trees that are separate from other trees and often build near large nests of wasps, whose…

The family of seabirds called alcids is an eclectic bunch that includes puffins and murres. The largest alcids are about the size of a duck, but the smallest — called the Least Auklet — could fit in the palm of your hand. With their short wings whirring, these miniature seabirds look like…

A bird’s crest is made up of a slender array of feathers on top of their head. These feathers are a bit longer and can be spiked up or slicked back, depending on what the bird is trying to communicate. Even birds without crests, like crows or sparrows, sometimes puff up their short crown…

Greater Yellowlegs — not surprisingly — have bright yellow legs and feet. And why? While foraging through shallow water, a yellowlegs can keep track of its legs by the color, which contrasts with the sometimes dark and irregular bottom. A Sanderling, on the other hand, has black legs and…