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climate change

Habitat and the Tipping Point

Rick Potvin is the manager of the McKinney National Wildlife Refuge on Long Island Sound. He oversees coastal and low-lying habitat for wildlife. Rick says, "What we need to do is to get our habitats in the most robust condition we can - because there will be a tipping point, and the species that... read more »

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Topics & Themes:  environmental champion

Northern Pintail - Elegance and Decline

In recent years, unlike many other North American ducks, Northern Pintails present a portrait of sharp decline. Pintails nest in grasslands near seasonal wetlands. Increasingly, these grasslands are being plowed up to grow crops such as corn. But people who love pintails are responding. Ducks... read more »

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Topics & Themes:  nesting

Ivory Gull and Conservation

Polar Bears symbolize the icy landscapes of the far north like no other animal. The bear's way of life — its very survival — is inseparable from the Arctic pack-ice. Less familiar is a remarkable bird that shares with the Polar Bear this vital link to ice: this Ivory Gull. The gulls feed on small... read more »

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Marbled Murrelets

In recent decades, the number of Marbled Murrelets, a seabird of the Pacific coast, has declined. Scientists in Canada and the US have analyzed the chemical composition of murrelet feathers - some from birds carefully preserved since 1894 by the Burke Museum in Seattle. The analysis shows that... read more »

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Topics & Themes:  science

Former Abundance

On a November day in the late 1960s, flying in a light plane along the Mississippi River, the eminent waterfowl biologist Frank Bellrose came upon a raft of 450,000 Lesser Scaups that stretched for miles. Protection, restoration, and enhancement of habitats used during all seasons are under way... read more »

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Brown Pelicans - What We're Learning

During the winter of 2009-2010, thousands of Brown Pelicans washed ashore on Pacific beaches, wet, cold, starving. Fierce storms, thought to be more frequent because of global climate change, probably made it difficult for the birds to feed. And storm-water runoff washed oil and pollutants into... read more »

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Black Guillemot, Part 2

To feed their young, Black Guillemots search for food at the edge of pack-ice. In 1972, this was a just short trip from Cooper Island. Now it's more than 25 miles. Unable to find sufficient food close by, they're abandoning their chicks in order to save themselves and try again the next year. The... read more »

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Topics & Themes:  science

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