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11 spectacular bottlenecks in bird migration from around the world

Migratory birds roam countless millions of countries in America, Africa and Eurasia every spring and autumn. These epic journeys often...

11 spectacular bottlenecks in bird migration from all over the world

Migratory birds move in their innumerable millions across America, Africa and Eurasia every spring and fall. These epic journeys often...

Discover the fascinating science behind bottlenecks in bird migration

After successive humid days in the Andes in central Colombia, the November morning provided rain-free warmth. And how the Swainson's Hawks Buteo...

Discover the fascinating science behind bottlenecks in bird migration

After successive wet days In the Andes in central Colombia, the November morning delivered rain-free warmth. And how the Swainson's...

Scientists uncover migration bottlenecks that are used by tens of millions...

Scientists from the National Audubon Society have published a study highlighting the high conservation value of California's Central Valley and Colorado River Delta...

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