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Marbled Murrelet (Brachyramphus marmoratus)

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Mating for Life

Most bird species in North America mate for a single breeding season. Some may team up again the following year, just because both stay in - or return to - the same territory. Fewer than one-fifth of Song Sparrow pairs, like these, are reunited. Hawks, eagles, and ravens have wide territories,... read more »

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Topics & Themes:  nesting

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

Marbled Murrelet - Interview with Martin Raphael

The endangered Marbled Murrelet is a bird of two worlds. Martin Raphael, a biologist with the Pacific Northwest Research Station, explains: "It lives in the marine world. But then it nests on the limbs of large, old trees. Its fate is tied not only to the fate of the trees, but also on marine... read more »

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Fake Marbled Murrelet Eggs Cause Jays to Vomit

Because the Marbled Murrelet lays only one egg, its odds of raising a family are slim. Steller's Jays – as they frequent campgrounds in the redwood forests of northern California, looking for human handouts – further threaten murrelet reproduction by eating their eggs. Fortunately, scientists... read more »

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Topics & Themes:  ecology, nesting
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