Hummingbirds: Jewelled Messengers - Go Wild

Rockport, Texas is being invaded: 14 million Ruby-throated hummingbirds fly into this suburb of Corpus Christi in a period of 48 hours. They are about to undertake the most remarkable journey, flying non-stop over 1,000 kilometres across the waters of the Gulf of Mexico. The trip will take 25 hours without a possibility to pause. By the time they arrive in Rockport, the tiny birds weigh only 4 grams. That is dangerously little: they do not have enough fat to fuel the flight.

Courtesy of Go Wild on YouTube. Watch on YouTube ↗

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