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 feet. Its

Los dispositivos de rastreo revelaron que los vencejos negros ( Cypseloides niger) pasaron más del 99 % del invierno en el aire, casi sin tocar el suelo durante meses. Y no solo eso: ¡llegaron a alturas increíbles, alcanzando sus mayores altitudes durante las noches de luna llena, a veces por encima

While camping in the mountains, you might see this Canada Jay (formerly known as the Gray Jay — but before that, as the Canada Jay!), boldly swooping into your camp. This handsome jay’s big, black eyes seem to miss nothing — especially food. But the one food Canada Jays don’t eat is conifer seeds

Writer Amy Tan’s work is known all over the world. And thanks to her latest best-seller, The Backyard Bird Chronicles, she’s now also known for her deep love of birds. Tan not only spends time interacting with birds, she also comes up with creative ways to help them. This episode was produced as

Except around Easter, chicken eggs usually come in a predictable range of colors: white, brown, and sometimes pale blue or green. Chickens are descended from the Red Jungle Fowl of Southeast Asia, which has been providing eggs for humans for thousands of years. The final color of an egg comes from a

Piping Plovers are tiny, sand-colored shorebirds that nest on the beach. They’re threatened in much of their range. But plovers have gotten a boost from something rather surprising: hurricanes. Superstorm Sandy left behind plant-free, sandy beaches on barrier islands in New York and New Jersey

Although many seabirds utter groans and croaks, the Pigeon Guillemot produces a lovely series of trills and whistles. As part of their courtship, they fly side by side in large circles and loops, a perfectly synchronized flying act. These guillemots do not breed until they are between three and five

Why are blackbirds black? One possible answer is that black is conspicuous against just about all of Nature's backgrounds. Blackbirds, like this flock of Red-winged Blackbirds and Yellow-headed Blackbirds, feed on the ground. Whenever a predator approaches, they take flight. Coming together quickly

Young birds leave their nests in different ways. Some shuffle tentatively along the nearest branch and practice flapping their wings, while others take the "big leap." Which path they take depends upon their species and the location of the nest. Young Great Horned Owls clamber out of the nest to

No es de sorprender que los patamarillas mayores tengan patas y pies de color amarillo brillante. ¿Por qué? Mientras caminan por aguas poco profundas, un patamarilla mayor ( Tringa melanoleuca; como este) no deja de ver sus patas gracias a su color, mismo que contrasta con el oscuro e irregular