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nesting

People Helping Bluebirds - Interview with Barb Jensen

By the late 1950s, Western Bluebirds had disappeared from the San Juan Islands of Washington State. But in 2010, 84 young Western Bluebirds were banded on San Juan Island. How? Barbara Jensen, president of San Juan Islands Audubon, says: "The key to bringing this together has been the incredible... read more »

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Topics & Themes:  environmental champion, nesting

Hendricksons and the Violet-green Swallows

Ray and Gretchen Hendrickson made homes last spring for swallows in their garage in Leavenworth, Washington. When the birds had picked out a hole, they took a coffee can and tin snips, and cut down an inch around the top so they could bend the little flanges out. They tacked the can behind the... read more »

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Topics & Themes:  environmental champion, nesting

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

Trogons Nest with Wasps

The "Violaceous" Trogon (recently split into three species), which nests in Mexico, Central America, and northern South America, often excavates its dwelling within a large, active wasp or termite nest. It begins by devouring some of the insects, then digs a cavity large enough to accommodate the... read more »

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Topics & Themes:  nesting

Swallows Return to Nest

Each spring, eight species of swallows — including this Barn Swallow — migrate north from the tropics to nest in North America. Tree Swallows and Purple Martins are especially dependent on man-made nestboxes. Tree Swallows nest over much of the continent, while Purple Martins are most prevalent... read more »

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Topics & Themes:  migration, nesting

When Starlings Cheat

When Hank Williams wrote Your Cheatin' Heart, birds probably weren't on his mind. But researchers have found evidence of what we might call "infidelity" in birds. Scientists in east Africa learned that female Superb Starlings often seem to have "cheatin'" on their minds. Superb Starlings live in... read more »

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Topics & Themes:  nesting

Tree Swallows and Feathers

Tree Swallows glisten in the June sunlight, as they swoop and glide, their arcs interlacing in the air. When a white feather flutters down among them, one swallow snatches the feather in its bill and flies upward, as another gives chase. After a moment, the lead bird lets loose the feather, which... read more »

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Topics & Themes:  nesting

Midway Project - The Plastic Gyre, with Chris Jordan

Artist Chris Jordan brings a deep energy to a huge environmental problem - the accumulation of plastic debris in the world's oceans. He's photographing its effect on the Laysan Albatrosses of Midway Island. Adult albatrosses mistake pieces of plastic for squid and fish and feed them to their... read more »

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Topics & Themes:  nesting

Wood Storks and Climate Change

Wood Storks nest in trees, often in big colonies, and only when conditions are just right for them. Because of their feeding technique, they thrive in the early part of the dry season, when receding floodwaters concentrate fish in small pools. But this method of feeding is effective only when the... read more »

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Topics & Themes:  nesting

Why Birds Sing

Why do birds sing? Ornithologists have learned that the longer hours of light that come with spring trigger the release of hormones in birds. These hormones prompt the enlargement of the birds' gonads which, in turn, stimulate male birds to sing. Male birds - like this Black-headed Grosbeak - can... read more »

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Topics & Themes:  breeding display, nesting, vocalization

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