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migration

Wilson's Warblers Benefit from Shade-grown Coffee

Early this fall, the tiny Wilson's Warbler began its long migration to Belize, where it winters. Navigating by the stars, the 1/4-ounce bird made a series of night flights spanning more than 2500 miles. This warbler returns to the same coffee plantation each year. Taller trees that shade the... read more »

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Topics & Themes:  migration

Vernal Equinox - West

Ahhh, the first day of spring . . . at last! And the birds know somethin' is up. Both science and folklore tie Spring to the renewal of nature, as the world awakens from the long cold winter. Here's a Virginia Rail, usually unseen but hardly unheard, ringing in the new season. Spring has sprung.... read more »

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Topics & Themes:  migration, vocalization

Wilson's Warbler near Summer's End

By early August, the rich yellow of the feathers of the Wilson's Warbler seems to flash in every forest thicket. Despite predators and weather, many pairs of adults have raised four young, which now flit about on their own. The young males hatched this spring learned their father's songs this... read more »

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Topics & Themes:  migration

Vaux's Swift Roost

The largest known swift roost in the world - over 30,000 Vaux's Swifts - can be seen each September in Portland, Oregon, in a chimney at Chapman Elementary School. Portland Audubon hosts a Swift Watch. Learn more about this program and be sure to see a video of the swifts swirling down the... read more »

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Topics & Themes:  migration

Wilson's Warbler Part IV

A week of non-stop singing attracts a female Wilson's Warbler to the male's territory at the edge of the forest. The female alone builds a nest, concealing it in mossy ground at the base of a shrub, or perhaps in a tussock of grass. She lays four eggs, which she incubates for 12 days. When the... read more »

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Topics & Themes:  migration, nesting

Vultures Sail the Strait

From atop a thermal, Turkey Vultures in groups of up to 200 sail across the Strait of Juan de Fuca, making landfall near Salt Creek County Park on the Olympic Peninsula. The Olympic Peninsula Audubon Society sponsors a free field trip to witness this autumnal passage. Check out that or other... read more »

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Topics & Themes:  migration

Swainson's Thrush, Power Napper

When the Swainson's Thrush departs its wintering grounds in Mexico or South America, it travels at night. When does it sleep? Recent research by scientists at Bowling Green State University suggests that during migration, Swainson's Thrushes take hundreds of "power naps," lasting only a few... read more »

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Topics & Themes:  migration, science

Swainson's Thrushes - Reassured by their Return

Swainson's Thrushes return each spring, having made long journeys from Central and South America. They've flown over mountains, cities, and miles of water. Their safe arrival is in no way assured. Listen in late May and early June for their exploratory call, a bright "whit!" Later, in the summer,... read more »

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Topics & Themes:  migration, vocalization

Swallows on Wires

Once nesting season ends, swallows know it's time to party! Whether they nest as single pairs or in large colonies, both adults and juveniles now gather on electrical wires by the dozens, socializing before they migrate. Migrating by day - and foraging for insects as they go - swallows (including... read more »

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Topics & Themes:  migration

Salmonberry Bird

The native names of birds sometimes distill the essence of their appearance or behavior. In the Cherokee language, for instance, the Meadowlark is called "star," because of the way the bird's tail spreads out when it soars. To the Northwest Coastal people, this Swainson's Thrush is known as the ... read more »

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Topics & Themes:  migration

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