A pair of Mallard Ducks decided to use our swimming pool as their personal pond and toilet.
Our poolman said this was a common problem around this time of year, but he didn't have a solution to get rid of them.
I went to our local pool supply store and the owner suggested we leave a large green alligator floating in the pool. I took his advice and bought an inflatable alligator (that I've since named "Oliver") and curiously watched to see what would happen.
Sure enough, the ducks came swooping down to land in the pool, took one look at the menacing looking alligator, and flew off quaking with fright!
"Oliver" is my new favorite hero.