A female Osprey sat for some time in the rain on a piling as it watched the water below for fish. It finally gave up and prepared to leave. It pooped and (what I had not seen before) flapped its wings to shake off their accumulated rain water. She then flew off.
It just isn’t clear to me what the osprey is doing differently with its wings. In each case it flapped them, but in the first case it did not lift off, in the second case it did.
The osprey stands on the piling and flaps its wings to clear them of the rain water.
The osprey flaps its wings and flies off.
