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migration

Recording Cerulean Warblers with Charlotte Goedsche

Since 1998, Charlotte Goedsche has been studying the Cerulean Warblers that breed in the mountains near Asheville, North Carolina. And she has learned some fascinating things! For example, Charlotte can identify individual Cerulean Warbler males like this one, by listening to their songs. She... read more »

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American Redstart - The Tale Is in the Tail

Who knew that this American Redstart’s feathers could reveal so much information about its life? For example, the more intense the color of a male American Redstart’s feathers, the better his chances of holding a good winter territory, which means access to good nutrition. Being well fed and in... read more »

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Topics & Themes:  breeding display, ecology, migration, plumage

61 Tons of Robins!

In winter, flocks of American Robins spend the night together. Typically, a few dozen to a few hundred birds roost communally in trees or an old barn, or under a bridge. But larger robin roosts can number in the thousands, or even tens of thousands! In 2007, observers near St. Petersburg, Florida... read more »

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Topics & Themes:  ecology, migration, science

Bohemian Waxwings Wander South

In winter, when snow blankets the northern states, nearly all of the songbirds that graced the days of summer are gone. But there’s one special winter visitor that fills the absence: the Bohemian Waxwing. In autumn, waxwings wander south from the boreal forest into the northern states and along... read more »

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Topics & Themes:  migration

Yellow-rumped Warbler - The Winter Warbler

By winter, most warblers have migrated south. But the Yellow-rumped Warbler, which birders affectionately call “butterbutt” is a lesson in adaptation, notes Bryan Pfeiffer, a writer, naturalist, and educator who lives in Vermont. “In winter, when most of their kin are enjoying insects in the... read more »

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Topics & Themes:  ecology, migration, ornithology

Long-distance Champions of Migration - With Scott Weidensaul

Arctic Terns are the long-distance champions of migration. Thanks to satellite transmitters and geolocators, we know that some Arctic Terns travel more than 50,000 miles annually! Scott Weidensaul, naturalist and author of Living on the Wind, says these technology tools “make the issue of bird... read more »

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Topics & Themes:  migration, science

South Polar Skuas - Bullies of the Oceans - with Tom Johnson

Meet the South Polar Skua, a predatory seabird. During summer in Antarctica, South Polar Skuas feed their young on the chicks of other seabirds. And once their breeding season ends, the skuas fly to northern oceans, such as the North Atlantic, to find large flocks of shearwaters, gulls, or terns ... read more »

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Topics & Themes:  migration

The Importance of the Yellow Sea - With Nils Warnock

For shorebirds like Bar-tailed Godwits, Black-bellied Plovers, and Dunlin, mud matters. Few mudflats are more important than those of the Yellow Sea along the coast of China, and North and South Korea, where more than 70 species of shorebirds rest and feed. For several species of shorebirds,... read more »

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Topics & Themes:  ecology, migration

Geolocators Reveal Secrets of Landbird Migration

Geolocators are revealing fascinating information about the lives of migratory birds. These devices are so light that they can be mounted on the backs of even small birds like the Wood Thrush pictured here with its nestlings. Thanks to geolocators, we know that many Wood Thrushes return to the U.... read more »

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Topics & Themes:  ecology, migration, ornithology, science

Counting North America's Waterfowl

In autumn, millions of North American waterfowl – like these Redheads – migrate south. They come from Alaska, the prairies and forests of Canada, the Pothole region of the Dakotas, and Eastern Montana. Their arrival is awaited by birders and hunters alike. Because waterfowl are a vital natural... read more »

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Topics & Themes:  migration, nesting, science

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