I have three call ducks, all girls. They have gotten on together no problems for a year. Now two of them are suddenly attacking the smallest one. I have a feeling even that the smallest one may have started it. A few days ago she got a funny crease in her cheek, I'll post a picture. Her head keeps vibrating and then she goes for them. Now the other two heads down, beaks open and chasing her away from the food and the water. There's just one hour before bedtime. Do I put them all in the same hut tonight? Are they going to go nutso? She's not having a stroke is she? She's not sick so they are trying to push her away are they? AAAAAAAAAAAAARGHHHH PLEASE HELP SOMEONE!!!