I have 2 Pekins- 1 drake and 1 hen. They are 7 months old. They have lived with 5 chickens since they were babies- in one coop. Over the past 8-10 weeks- I discovered that my ducks are cornering my hens and pulling out and eating their feathers. I had one hen that is featherless on her back, under her wings, and shoulders...I wasn't sure it was them for sure, or the hen feather picking, but I have since witnessed them doing this.( This hen is now inside for the winter). I thought they picked on her because she was lowest in the pecking order and very tame. HOWEVER, the last couple days, I have witnessed them doing this to another hen. Usually the hens got away from the ducks- but for some reason, this hen just lets them eat her feathers. I can't let them peck another hen bald! What can I do? I already switched to a higher protein food (Purina Flock Raiser- 20%) They free range from about 9am until sunset...there isn't much in the yard but they have mulch beds, grass, and a garden to dig in. I give about 1 cup of BOSS between the 7 of them daily, and 1/2 cup mealworms daily. On cold evenings, I scatter a handful of cracked corn. I just ordered from Nature's Peck- Insect Medley, mealworms, and cracked worms.... Any other ideas what to do? How much additional mealworms a day should I give them for more protein? I'm looking for actual amounts for 2 large Pekin ducks. The plan is to build them their own pen in the spring- but we cannot right now because of how the current coop/garden are situated.