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migration

Swainson's Hawks Migrate South

In autumn, hundreds of thousands of Swainson's Hawks migrate to South America. With the help of a satellite tracking device, let's follow an individual male. On September 14, he leaves his breeding territory near Hanna, Alberta; reaches southwest Saskatchewan by September 23; passes through... read more »

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Topics & Themes:  migration

Bird-friendly Glass - Interview with Christine Sheppard

Why, when birds have such exceptional vision, do hundreds of millions die every year by slamming into glass windows? Christine Sheppard, who manages the Bird Collisions Campaign for American Bird Conservancy, explains: "Birds don't see glass. ... People don't see glass either, but people... read more »

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Topics & Themes:  migration, science

Birds Return with the Light

Winter's weak light is finally beginning to strengthen, and some birds, long absent, have begun their journeys north. Tree Swallows, such as this one, phoebes, bluebirds, and more return with the light. So be of good cheer, the birds and spring are coming back. You can learn more about this... read more »

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Topics & Themes:  migration, vocalization

Henry David Thoreau and the Wood Thrush

In June 1853, Thoreau wrote of an enchanting encounter with the Wood Thrush: "This is the only bird whose note affects me like music. It lifts and exhilarates me. It is inspiring. It changes all hours to an eternal morning." Wood Thrushes thrive in large expanses of forest. And their numbers have... read more »

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Topics & Themes:  migration, vocalization

Southwestern Willow Flycatcher

Willow Flycatchers nest across the northern two-thirds of the U.S. and southernmost Canada. A subspecies, known as the Southwestern Willow Flycatcher, nests in the Southwest, as far east as Texas. The Southwestern Willow Flycatcher was listed as endangered in 1995. It's just one of 300 bird... read more »

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Topics & Themes:  migration

Tune Up Your Ears - West

By March in the West, Song Sparrows and other songbirds that don't migrate are already singing heartily to attract mates. Many other birds - including this Warbling Vireo - will return north from the tropics in April and May, announcing themselves in song as soon as they arrive in nesting areas.... read more »

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Topics & Themes:  migration, vocalization

Early Spring Songs (Bay-area, California version)

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in California are American Robin (left), Fox Sparrow, and Wrentit. Listen to the songs of these birds, plus thousands of others at Cornell University's Macaulay Library website. Learn more... read more »

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Topics & Themes:  migration, vocalization

Early Spring Songs (South Texas)

In March, we welcome the lengthening days and the renewal of bird song. Among the earliest spring singers in south Texas are White-throated Sparrow, Cassin's Sparrow, and Purple Martin (left). And spring songs are breaking out all over the country. Listen to the songs of these early spring... read more »

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Topics & Themes:  migration, vocalization

Lights Out Toronto - Saving Birds

Urban light creates a fatal attraction and disorients migrating birds, which often fly around until exhausted and drop to the ground. Or they may strike a building or window. To prevent these needless deaths, the city of Toronto has created a "Lights Out Toronto" program. Lights go out in city... read more »

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Topics & Themes:  migration

Southbound Swainson's Hawks

At 9,000 feet in the Manzano Range in New Mexico, HawkWatch International counts and bands raptors making their way south along the Rocky Mountain front. Some, like this Swainson's Hawk, fly all the way to the pampas of Argentina. read more »

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Topics & Themes:  migration

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