I used to think ducks wings hit the water when they do this but while fishing a couple of weeks ago I realized they don't. We were pretty close to some when they took off and I could see that their feet are running on the water. Their wings never touched the water though.

Walk on Water | Canon 20D | 70-300 @ 300mm | f/7.1 | 1/800 | ISO 200 | Handheld