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.

The Northern Bobwhite — many call it just the Bobwhite — has an unmistakable call, which is also the source of its name. The species is native to the US, east of the Rockies. But Northern Bobwhites have been released into the wild as game birds in many locales in the West.

Some swifts and frigatebirds stay aloft for months. But for a long time, scientists did not know if the birds might be sleeping on the wing. A 2016 study provided answers. Tiny devices attached to the heads of frigatebirds revealed fascinating information: the birds did sleep while aloft…

La menudita perlita azulgris (Polioptila caerulea) de apenas unos 10 centímetros se encuentra en gran parte de Estados Unidos y México, y también en algunas regiones del Caribe. Busca activamente insectos pequeños en árboles y arbustos para comer, a menudo quedando suspendida en el aire…

Insects sustain our ecosystems, as a food source and pollinators of 90% of all plants. But their numbers have dropped by half in the last 50 years, so it is now critical to help foster insects. One concrete way to help is to grow native plants that provide food and shelter for insects like…

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…

When it’s predictable and wildlife is well adapted, natural flooding can create a biological bonanza. In the Amazon River Basin, which holds one-fifth of the world’s fresh water, annual rains can raise water levels 30 to 40 feet in just days. Forests turn into vast lakes, dotted with trees…

The song Tico-Tico no Fuba, like Carmen Miranda, came to us from Brazil. Believe it or not, the song is about a bird. The Portuguese lyrics tell the story of the tico-tico, a local name for the Rufous-collared Sparrow. Like so many birds, tico-tico was named for its song. In the song, the…

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…