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An effort to restore the region's historic woodlands is showing signs of success. Now conservationists hope to reestablish the long-gone songbirds.
A new decision by an Atlantic Coast fishing regulator may put coastal birds like Ospreys at risk of not having enough to eat.
Advocates have long fended off proposals that would deplete Arizona's San Pedro River, but today's threats add up to a daunting challenge.
A record death event during fall migration sent experts scurrying for an explanation. In the lab results, they see a common factor: climate change.