A stiff December breeze blowing down the Columbia River delivers an exhilarating chill. A stretch of river near Bridgeport, in north-central Washington, is held tightly by a series of dams, creating massive lakes. High on an overlook, a Bald Eagle watches a flock of birds – coots, ducks…

Songbirds delight us with their music, but at times they might sound repetitive. That’s because songbirds have to practice their singing to keep performing at their best. Researchers studying Zebra Finches found that females preferred the songs of males that had been practicing…

Hummingbirds such as this Buff-tailed Sicklebill specialize in nectar feeding. But other species of birds, less specialized to nectar, also visit flowers for a taste of the sweet stuff. The flowers they visit likely have a more open shape, with nectar more accessible to a non-specialist’s…

The Scaly-breasted Wren lives in Central and South America, and has a lengthy song of whistled notes separated by pauses. By analyzing song recordings, researchers found that Scaly-breasted Wrens can precisely measure out pauses — even as they increase to several seconds. The findings…

In the boreal forest, winter temperatures routinely drop to 30 degrees below zero. Birds that spend the winter in this harsh domain rely on remarkable adaptations to survive. The Spruce Grouse is one such bird. Most Spruce Grouse remain here all year. In the snow-free summer, they forage…

On the north Atlantic coast, a slate-gray sandpiper picks among the barnacles and mussels that encrust a jetty’s massive boulders. At the same moment, a parallel scene unfolds on the north Pacific Coast. A slate-colored sandpiper emerges from the salt spray to forage over a windswept jetty…

Great Horned Owls have a lot to say! When a pair of Great Horned Owls calls in a duet, the female usually hoots first, and the male replies at a lower pitch. Great Horned Owls may also pierce the darkness with an eerie shriek, which may signal a hungry owlet begging for food or a female…

Screech-owls are opportunistic diners. In the Pacific Northwest, they’ll prey on small birds, crayfish, large ants, or earthworms. In Arizona, pocket mice and pack rats. And in Ohio, biologists who noticed a fishy smell around Eastern Screech-Owl nest boxes found the remains of dozens of…

In this episode of BirdNoir, Michael Stein — Private Eye — gets a call from a friend, Danny, who wants to know why the bluest bird he’s ever seen has vanished. But there are many birds that are blue besides the true bluebirds (which belong to the thrush family). To solve the mystery, the…

Looking at a Canada Goose, you might not think their bodies are designed for fancy flying. But watch as a flock of geese comes in for a landing at a lake and you might be surprised. If the flock comes in too fast or too high above the water, geese have a little trick to slow themselves…