I hear the flapping of the wings of the birds in flight.... Arctic swallows who have flown 12,500 kilometers from the North Pole to the South Pole, I wonder how long they can stay at their destination.... Maybe migratory birds live in During the flight...how did they fly across the ocean, there are boats, lighthouses and they can stop and rest, if not.... This should not be a problem for them, and human civilization appeared How long, they live too much.. I hear them panting when they stop to rest for a long flight...
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Winged Migration reviews