Whoa that is not near the amount of room they need. That is only enough room for about 6 hens to just sleep in at night. If they are confined during bad weather, they need way more room, or you are going to see more injuries. Do you have a basement or garage that would provide more room? Do they have a run they can get out into during the daytime? Experts usually say to give 4 square feet to each chicken, and more if they are inside all day. If there is snow, I usually shovel an area for them to come outside for some sun and to peck around. If mine are confined, I will throw some scratch around to give them something to do, and some people hang a cabbage to peck on.