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Birdbaths in Winter

Does the image of a frozen birdbath bring to mind a small yellow bird with ice skates? Birds need water in all seasons, for drinking and for bathing. When the water is frozen, you can thaw it with hot water. Or go the slightly more expensive route and add a heater.Support for BirdNote comes from... read more »

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Topics & Themes:  backyard sanctuary, birdfeeding

An Owl Is Mobbed

A pint-sized Northern Pygmy-Owl, not much bigger than a pine cone, hoots from a tree-top on a winter morning. Before long, this diurnal owl - a determined predator of small birds and mammals - will attract a mob of a dozen or more small birds. Mobbing may be a collective response to danger. But... read more »

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Alpine Swifts Fly Nonstop

How long can a bird fly without touching the earth? To find out, Swiss scientists attached sensors to Alpine Swifts. The sensors showed long periods when the swifts were gliding and not flapping their wings. Were the birds asleep? Scientists don’t know for sure. It could be that Alpine Swifts... read more »

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Topics & Themes:  flight, migration

Where Are They Now?

Where have the birds of summer gone? The Swainson's Thrush is wintering in Central or South America, maybe as far south as Bolivia. Warbling Vireos are now spread through much of Central America, while Black-headed Grosbeaks have migrated to Mexico. This Orange-crowned Warbler also makes Mexico... read more »

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Topics & Themes:  migration, vocalization

A Year's Worth of Birds

Phoebe Snetsinger saw more than 8,400 species of birds in her lifetime! And she doesn't even hold the record. You don't have to keep a list to enjoy birds, but the variety you see in your own yard might surprise you. Start a list now, and keep track of a year's worth of birds. If you're lucky,... read more »

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Topics & Themes:  birdwatching

How Birds Become Red

Most birds have the capacity to make red feathers, even those that lack red plumage. This discovery was revealed by scientists who studied Red-factor Canaries — a “hybrid” bird that is part canary, part Red Siskin, like this one. Both species have the “redness gene.” But Red-factor Canaries have... read more »

Birds of Paradise

It's morning on the island of New Guinea, and the lowland forests erupt with the crowing calls of Birds of Paradise. Male Raggiana Birds of Paradise perform elaborate displays to attract females, sometimes even hanging upside-down with their wings pointing upward. Forty-three species of Birds of... read more »

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Winter Brings Snow Buntings

Snow Buntings begin their lives amid the harsh conditions of the high Arctic. They're prized winter visitors to the northern tier of states. Look for them along shorelines, in farmland, and open country - landscapes that mirror the Arctic tundra where they fledge their young. Snow Buntings face... read more »

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Winter - Nature's Cold Storage

For birds and other animals with good natural insulation, winter provides a striking benefit as they scavenge. Bacteria function very slowly or not at all in the cold, preventing dead bodies from rotting. In northern latitudes, ravens and other scavenging birds take advantage of winter's cold... read more »

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Topics & Themes:  science

Birds on a Cold Night

During December, birds spend the long, cold nights in a protected place, sheltered from rain and safe from nighttime predators. Small forest birds, such as nuthatches and creepers, may spend the night huddled together in tree cavities. Birds like this male Mallard fluff up their feathers for... read more »

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Topics & Themes:  science

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