Hi guys! I just have a quick question. I saw my "top of the pecking order" drake (Ivan) mate with one of the females this morning. I changed my duck's water about an hour ago and saw that when they were in the pool, the girls would nibble on Ivan, then he would grab their bills, and then grab their necks and start to pull. I read on a website that this is a mating behavior, but I'm not sure. I'm scared for the girls because he is really rough. He also will run over and attack my hand when I'm changing their food or petting one of the of the girls (I can see why he does that.....) Is he too aggressive for my flock?