A couple of weeks ago my girls started to peck at three of the lower status hens. They put a hole in the top of the tail area of one girl and took the neck feathers off two others. I believe that my hen house is too small for the nine of them - they are too crowded. (It's 7x5 and I have nine hens in there. Three of the hens are smaller than a standard size so I was hoping things would be Ok but with the snow we've been getting there have been many days where they wouldn't come out the pophole door because of the weather. Normally they are outside all day in a very large run or free ranging. These injuries are always happening at nighttime.) I've heard that Roosters will often stop hens from messing with each other. Our first (and only) Roo was great at that and protecting his flock. He was rehomed due to aggressively attacking my children. I found a Silky Roo yesterday for free. He was supposed to be a she but started crowing and the lady already had one or two Roos who were starting to attack this one so she couldn't keep him. I decided to add yet one more chicken to my small hen house hoping that he would stop the girls from fighting amongst themselves. He is the smallest of my flock but not a lot smaller than the others. I introduced him while in a dog crate for a while and then let him out with the girls while they were outside yesterday. Most of my girls ignored him but my hen who took over when our Rooster left took issue with him and attacked. He valiantly fought back - feet to feet in the air. BUT, he backed down first. He spent the rest of yesterday running away from the girls. I was quite concerned about him last night. I went out this morning and found him cowering in a nest box with a big hole of feathers pecked out of his tail. It's all bloody. We've medicated it and are keeping an eye on him. Here's my question: Should I give him some more time here to see if he will 'buck up' and become a man. Or, do I take him back to his former home (she said she'd take him back). I don't want him to be injured worst but am hoping he might stand up for himself. I need any/all advice you can offer. Thanks.