Beavers are well known as ecosystem engineers in North America. In Australia, lyrebirds play a big role in shaping their environment when they use their toes to dig in the ground for food. A single lyrebird can shift 11 dump truck loads of soil and leaves — each year! That’s thought to be…

The avian world is full of mimicry artists, but Northern Mockingbirds take it to a new level. Not only can they imitate other birds, they can mimic frogs and toads! Their performances are so convincing it’s hard to tell frog from bird. It’s still unknown how this benefits mockingbirds, but…

Most raptors are solitary birds, but Harris’s Hawks of the southwestern U.S. live and hunt in groups of two to six. After spotting a prey animal, the hawks swoop in from various directions to catch the confused creature. If they miss and their prey takes cover, some of the birds try to…

The Pine Warbler is one of the few warblers that make appearances at bird feeders. They live year round in pine forests of the southeast U.S. and several Caribbean islands. Early spring is a good time to see them migrating through cities in the Midwest and the East Coast. If there’s a pine…

In this episode of BirdNoir, Private Eye Michael Stein gets a call from his friend Billy, a mail carrier. Billy says he hasn’t seen a single bird on his route since the storm came into town, even though at this time of year the streets are usually chock full of birds. He asks, what happens…

Boreal Owls are highly adapted to hunt in long hours of winter darkness. Uniquely, one ear opening in the skull is set high and the other much lower, an asymmetry that helps to pinpoint the sound of tiny rodents under the snow. They also have a pronounced disk of feathers encircling their…

To our ear, the haunting song of this Hermit Thrush is musical, even ethereal. To another Hermit Thrush, the song signals that a male is laying claim to a territory and seeking a mate. These thrushes, like other songbirds, broadcast a variety of calls. Call notes can signal many things –…

With their bare heads, long legs and massive bills, Wood Storks seem to have flown out of a fairytale — but in the American South they’re a real-life part of the ecosystem. Developers drained large areas of wetlands, causing the Florida Everglades population to decline to just 5,000…

Geese migrate north between February and April, making stopovers along the way to rest and eat. Most are bound for their breeding grounds in the far north. But we’ll hear them again soon, on their way back south in October. Click play and learn how to tell some North American species apart…

When buying seed for your feeders, it’s tempting to get the biggest, cheapest bag. But not all bird seed is the same. Figure out the nutritional value of the seeds and whether your local birds can actually eat them. Black-oil sunflower seeds provide good protein and fat. Other good seeds…