I have three Pekin ducks. Two are males- Ben and Cowgirl (long story behind the boy named Cowgirl), and a female- Marley. For the most part, they all get along. But several times each day, Cowgirl will attack Ben both on land and in the pond. The attacks seem to resemble rough breeding, but happen all year. These ducks are our family pets and we want to make sure they're getting along. So what are my options for stopping these attacks? Thanks in advance for any help!