Unfortunately, there are more males than females, so they tend to be quite rough. Two of my females have been killed already. I had two females that are constantly being targeted by a group of males; to be safe, i put them in the pen to let the wound on their necks heal. After a few weeks, i released them and went to school, after i came home i noticed that both of them had bloody necks and were limping, i hated the idea of keeping them pinned up, so i applied medicine to their wounds and let them go. A few days later, i sadly found one of them dead.. so i immediately looked for the other female and put her back up, but now, two males sit outside her pin waiting for her to be released, everyday. Ive raised all of the ducks myself, so it pains me to lose one. Any advice on what i should do? I don't really want to sell some of the males, since they are all so close, but if i must, i will.