My duck is now 1 year old, I hatched him in the incubator. He has always been around people. Sometimes he would try to get your toes through the fence if your not wearing shoes and he would try and get my kids legs if they were inside his pen/area. If people tried to pet him through or over the fence he would bite or pinch their hand with his beak. It wasn't a real hard bite or pinch. But now every time I get in the pen he tries to attack my legs, he acts too aggressive which is now making it a chore to feed or water. I don't look forward to entering the pen at all. I need to enter his area in order to get to my other ducks and some chickens. Any suggestions? Is this normal behavior? I'm not looking forward to enter the pen to feed any more.(he has made it such a chore just to feed) I do tell him "NO"... NO BITING and I give him a little swat and push him back easy. But it doesn't help. Thanks, Julie