Swainson’s Hawks make an incredible journey every year, migrating 12,000 miles round-trip from North America’s prairies to Argentina’s pampas. What makes them truly unique is their diet. Most hawks hunt rodents and reptiles, but Swainson’s Hawks switch to insects, feasting on grasshoppers and

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 shrubby

Over 12,000 miles across at its widest point, you might think the Pacific Ocean is a barrier that even high-flying birds can’t cross. Think again – some species make the trip every year as part of their life cycle. During the spring, Bar-tailed Godwits break up their trip from New Zealand to Alaska

Why do birds consistently follow certain routes in their migrations? Pathways of migration evolved, shaped by the wind. During the height of the last ice age, ice-free breeding habitat for songbirds remained in what is now Alaska and parts of Western Canada. Studies of fossil pollen show that

While full-speed-ahead birding can mean spotting a large number of species, there's quiet joy in stand-still birding. Pick a place-forest, field, or marsh. Find a seat that's dry, and hold your binoculars to your eyes. Be still and blend in. After perhaps 20 minutes, birds accept you as part of the

At first glance, many of the sparrows in North America look pretty much the same: like small, drab-colored songbirds hanging out on the ground. But these “little brown jobs” can be fun to identify if you know what field marks to look for!

Aleutian Cackling Geese, which have a slighter build and shorter beak than Canada Geese, build their nests on a chain of islands off the western coast of Alaska. In the 1700s, fur traders introduced foxes to the islands, nearly wiping out the geese. For decades, they were believed to be extinct. But

En algunos años, unos zorzales canelos ( Catharus fuscescens), llamados zorzalitos rojizos o zorzales de color leonado, acortan su temporada de reproducción. Los investigadores descubrieron que los zorzalitos rojizos tienden a dejar de reproducirse antes de tiempo en los mismos años en que la

In some years, tawny-colored thrushes called Veeries cut their breeding season short. Researchers discovered that Veeries tend to stop breeding early in the same years that the Atlantic hurricane season is particularly severe. Surprisingly, Veeries are sometimes better at predicting hurricane

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.