Tidal Assembly
This is a mixed bunch of birds on the beach at Gulfport, Mississippi in the fall. The birds are a mix of laughing gulls (Leucophaeus atricilla) and black skimmers (Rynchops niger). Notice that many of the birds have their head turned backwards and their bills tucked beneath their wings. The bill is an extremity, and they tuck them beneath their wings to warm them, like we might put our fingers beneath our arm pits to warm them on a cold day.
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