Cuando es predecible y la vida silvestre está bien adaptada, una inundación natural puede generar prosperidad biológica. En la cuenca del río Amazonas, que contiene una quinta parte del agua fresca del mundo, las lluvias anuales pueden aumentar el nivel del agua entre 9 y 12 metros en cuestión de

When Jerome Gaw got the chance to volunteer at the Aquarium of the Pacific, he was stoked. He'd loved sharks and marine life since he was a kid. But for his interview, he had to give a presentation on a creature he wasn't familiar with: the Great Blue Heron. But he read up on the bird, practiced his

Standing less than six inches tall, with gray feathers and big yellow eyes, the Elf Owl weighs less than an ounce and a half — that’s a bit less than a golf ball. But don’t let their size fool you. The Elf Owl hunts beetles, crickets, and spiders, plus the odd lizard or mouse. Even larger prey like

At sunset, the male American Woodcock – a plump, robin-sized bird – walks slowly on short legs from the cover of the forest to a nearby clearing. After a few sharp calls, the woodcock takes flight. As he spirals upward, slim, stiff feathers at his wingtips create a curious twittering. At the apex of

Birds evolved not only wings, but many other adaptations that make it possible to fly. Feathers provide insulation, waterproofing, and a lightweight means to become airborne. Birds have honeycombed or hollow bones, reducing body weight. And instead of weighty jawbones and teeth, birds evolved a

Zone-tailed Hawks of the American Southwest look a lot like Turkey Vultures. And they often soar among groups of Turkey Vultures. By consorting with vultures, Zone-tailed Hawks gain a distinct advantage as predators. While doves and lizards would quickly flee the flight silhouette of a Red-tailed

People often say that spring “bursts” forth. But this seasonal change isn’t like flipping a switch. It’s more like a series of waves breaking slowly. Robins and bluebirds return north in March. During April, more songbirds migrate north from the tropics, adding to spring’s growing chorus. As late as

Buying enough birdseed to keep all your backyard birds satisfied can run up a big bill. Homegrown National Park co-founder Douglas Tallamy says growing native plants in your garden can provide a balanced diet for birds. While there’s a misconception that native plants lead to a messy garden, Tallamy

Presente en gran partede Centroamérica, las parvadas de la urraca copetona son grupos familiares liderados por una hembra dominante. Incluyen a su pareja y varias crías femeninas que llevan alimento a la hembra principal y a sus crías. Es un ejemplo de crianza cooperativa, cuando aves que no son los

Tracking devices revealed that Black Swifts spent over 99% of their time in the air during the winter, almost never touching the ground for months. What’s more, the swifts flew to incredible heights, reaching the highest altitudes on nights when the moon was full – sometimes over 13,000 feet! It’s