By August, many birds have just completed the intense rigors of nesting and raising young and now undergo a complete molt. Molt is a cyclic process of feather growth. As new feathers grow in, they push the old ones out. Why molt? Because feathers wear out. Songbirds that migrate long…

Some believe the song of the Wood Thrush to be the most beautiful bird song in North America. Others select the song of the Hermit Thrush. Still others name the singing of the Swainson’s Thrush. How do thrushes like this Veery create such fine music? The answer is that the birds have a…

Algunos consideran que el canto del zorzal moteado ( Hylocichla mustelina) es el más hermoso de América del Norte. Otros escogen el canto del zorzal cola canela ( Catharus guttatus). Y hay quienes prefieren el canto del zorzal de anteojos ( Catharus ustulatus). ¿Cómo logran estos zorzales…

Canyons, whether large or small, can host a spectacular variety of birds! Consider Swakane Canyon, in central Washington State. It cuts west from the Columbia River into the Entiat Mountains for nine miles, while gaining nearly 3,000 feet. Steep slopes wall in the canyon floor, several…

In the rural Southeast, roadside ditches – known as “bar ditches” – carry on for miles. The term bar ditch probably comes from their construction, when dirt was "borrowed" to build up the road. The ditches are full of water and full of life, these narrow wetlands. Herons stalk the shallow…

Silbando mientras vuelan, los pijijes alas blanca ( Dendrocygna autumnalis) – o patos silbones de ala blanca – son aves acuáticas espectaculares, con picos y patas de color rosa brillante, cuello y lomo castaños, y partes inferiores negras. Aunque la mayoría de los patos silbadores viven…

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…