Decline hits North American birds
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More than 30% of North America's bird populations are in "significant decline" according to conservationists.
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Fourteen years after coming under federal protection, the northern spotted owl continues on the decline in the Pacific Northwest, a study shows.
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The populations of nearly two dozen common American birds &#151; the fence-sitting meadowlark, the frenetic Rufous hummingbird and the whippoorwill with its haunting call &#151; are half what they were 40 years ago, a new analysis found.
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A university study shows the population of a tiny endangered owl in northern Mexico has declined by an estimated 26 percent over the last seven years, a finding that environmentalists said bolsters their arguments for greater protection for the bird in Arizona.
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A new report has found that more than 40 per cent of all European bird species are threatened and may disappear soon due to intensive agriculture and climate change.
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Science & environment: Almost half of common European birds are heading towards 'continental extinction', a new report warns
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Last year&#39;s Christmas Bird Count in Missouri turned up a green heron, rarely seen in the state in the winter. Randy Korotev, one of the organizers, has no idea what birds will delight this year&#39;s counters.
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By Shankar Vedantam, Washington Post Staff Writer  Every spring, thousands of birds, some weighing a pound or less, set off on a journey of herculean proportions. They fly thousands of miles north, to breeding grounds in Saskatchewan and Alberta in Canada and to U.S.
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The bald eagle is out of the woods but other birds of prey are in trouble. An icon of conservationists, the bald eagle was on the brink of extinction in America&#39;s lower 48
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The best available science indicates that the current level of sage grouse protection implemented in oil and gas fields is not enough to maintain the bird's population, according to wildlife biologists in Wyoming, Montana, Colorado, North Dakota and Utah.
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By The Lexington Herald-Leader, Ky.  Dec. 9--More than a million tiny blue birds once sang and nested in the tops of Appalachian forests. Now there may be only 500,000 cerulean warblers left.
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Some might think fewer rodents would be a good thing, but scientists are concerned about the dwindling populations of two small fury creatures on New Mexico's list of endangered mammals.
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THE number of wild animals across the world has plummeted by 40 per cent in the past 30 years because of changes in the way humans are living.
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The marbled murrelet, a threatened sea bird whose rare trait of nesting in old-growth forests made it a factor in logging battles in the U.S. Northwest, is also declining dramatically in Alaska and Canada, where most of the birds live, according to a U.S. government review.
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Scientists are trying to figure out why the number of loggerhead sea turtle nests has declined significantly over the past seven years.
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A new study finds more than a thousand types of plant, bird, mammal and invertebrate are now endangered.
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Declining populations of common birds could be the harbinger of bigger environmental problems, a study by the National Audubon Society concludes.