This morning we discovered that our Runner, Brownie, had some blood; it's not a lot but it was on her foot and abdomen but as far as I can tell her foot is okay and the blood is just from her sitting on it. All 4 ducks go into the same "hut" at night. My question is can one duck really hurt another in that manner, I mean they don't have teeth and her face isn't injured, just her abdomen. A dog dug under the fence last night (we have an a**hole of a neighbor) and I thought that I got out there right when it happened but and the dog didn't get to the ducks but now I'm not so sure. When we saw the dog coming up under the fence I went out and trapped her while the kids put the ducks up and there hadn't been a commotion previously (I would have heard I was sitting 3ft from the door for hours before and after). So can ducks injure each other and draw blood like that or should I be looking at another culprit?