In summer, the thick tangles of streamside vegetation in many canyons echo with an uncanny sound — the Yellow-breasted Chat. You may find it in willow thickets, brushy tangles, and other dense, understory habitats, usually at low to medium elevations around streams. The male Yellow…

En lo alto de las montañas de Chiapas, estado en el extremo sur de México, una chachalaca negra ( Penelopina nigra) macho hace su demostración territorial. Esta chachalaca, también conocida como Pajuil, se refugia en una enramada, silva y se desliza mientras aletea. El sonido resultante es…

Bird song caught the ear of Italian composer Antonio Vivaldi. And he even named a 1729 flute concerto for a bird — the goldfinch. The source of inspiration for Vivaldi's Goldfinch concerto, or Il Gardellino, was the European Goldfinch, a tiny bird found throughout much of Europe, where it…

When we watch birds in flight, they’re often seen against a backdrop of clouds. Clouds have many different types and are listed in the International Cloud Atlas. The asperitas cloud was first described by citizen-scientists and has now been incorporated into the official atlas.

When it comes to raising a family, American Robins have got it down. Approximately eight days after the male and female mate, the female builds the nest. A few days later, she lays eggs. She sits on the eggs for 18 hours a day, and the eggs hatch in about three weeks. Both parents feed the…

Roger Tory Peterson, the best known American figure of 20th Century birdwatching, offered help on birding by ear. Whenever he could, he provided a catchphrase to identify a bird's song. "Witchety-witchety-witchety" captures the song of this Common Yellowthroat. The California Quail seems…

If you're near High Island, Texas in the spring, you might witness a "fallout," one of the great spectacles of bird migration. Thousands of birds, including Rose-breasted Grosbeaks, orioles, Painted Buntings, and warblers of all kinds, as well as tanagers and Indigo Buntings, like this one…

El saltarín barbiblanco vive en Trinidad y en gran parte de Sudamérica. Los machos cortejan a las hembras con chasquidos de alas que suenan como petardos. Un grupo de machos revolotea rápidamente de un tallo delgado y sin hojas a otro, apenas a unos 30 centímetros del suelo. Cuando el…

The male Ruffed Grouse stands on a resonant fallen log in the shelter of a brushy thicket, thumping the air with his wings. He raises them and, cupping them forward, beats the air. He's slow at first, then faster, creating a reverberating drum roll. This announces his territory and his…

En la primavera, millones de pájaros cantores, como este chipe peregrino, migran al norte atravesando el Golfo de México desde Yucatán hasta el sureste de Estados Unidos. Cuando las aves se encuentran con tormentas o vientos en contra, muchas de ellas morirán. ¿Para qué arriesgarse a morir…