One of the world’s most endangered birds has lost its sense of direction. So a team of humans are flying aircraft over 1,000km with a flock of birds behind them.
from BBC News - Home The birds that follow planes to get homehttps://https://ift.tt/2oaUXiE
from BBC News - Home The birds that follow planes to get homehttps://https://ift.tt/2oaUXiE
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