Some bird songs leave us in admiration of their beauty, some with a sense of wonder at their complexity—and others are downright comical. As a maker of silly sounds, the male Willow Ptarmigan beats the Three Stooges hands down. But these sounds are no laughing matter. Where it nests in the…

Owls have a reputation for hooting and hunting at night. But when you take a look – and listen – to the 19 species that live in the U.S. and Canada, it’s clear that these raptors defy stereotypes.

Bird feeders and birdbaths are great ways to attract birds to your yard, but they aren’t the only ways to entice our feathered friends. Planting an area densely with native shrubs, trees, and other vegetation can create a natural look that some birds are more likely to feel at home in…

Most birds molt and regrow their flight or wing feathers — one at a time along each wing — to stay in prime condition for flying. But for a Wandering Albatross, with a whopping 10-to-12-foot wingspan, that’s a big job! It takes the large albatrosses a full year to molt, and they have to…

La mayoría de las aves mudan y regeneran sus plumas de vuelo, una a la vez en cada ala, para mantenerse en óptimas condiciones para volar. Pero para el albatros viajero ( Diomedea exulans), que tiene una impresionante envergadura de entre 3 y 4 metros, ¡es un gran desafío! A los albatros…

The ability to fly seems to define birds. But there are more than 50 species of flightless birds throughout the world — from the Ostrich and Kiwi to flightless rails, ducks, and this Humboldt Penguin. Why did they evolve the inability to fly? Many dwelt on islands. Others evolved until…

Chickadees are tiny songbirds named for their characteristic song and there are seven species found in North America. You'll find the Black-capped Chickadee across the northern US into Canada. The Carolina Chickadee holds sway in the Southeast. Hear the husky voice of a Mountain Chickadee…

Williamson's Sapsuckers nest in western mountain forests. The radically different plumages of the male and female so confounded 19th-century naturalists that, for nearly a decade, the birds were thought to be of different species. Sapsuckers are unique among woodpeckers in drilling neat…

Northern Mockingbirds can learn to mimic the sounds of just about any bird. They mimic to show off, not to deceive. But this Thick-billed Euphonia, a tiny songbird in South America, employs what scientists call “deceitful mimicry.” When frightened by a predator near its nest, a Thick…

Si los vuelos migratorios de larga distancia ya son asombrosos, lo que ocurre dentro del cuerpo de un ave durante esos vuelos parece, sencillamente, increíble. Para almacenar grasa, muchas aves comen hasta tres veces más de lo normal y buscan alimento durante muchas más horas, mientras se…