Cory's shearwater (Calonectris diomedea) adult gliding low above the sea surface. These birds must maintain a high speed in order to remain in the air and use the wind above the waves to fly.
Cory's shearwater (Calonectris diomedea) adult gliding low above the sea surface. These birds must maintain a high speed in order to remain in the air and use the wind above the waves to fly.
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