Hi! I have had a mixed flock for about a year and a half. We recently went from 18 birds to 48, as we took in a rescue flock. I went from 12-16 eggs per day to 2-4 eggs per day, and I have 42 hens. We have had the additional 30 for 5 weeks now, and it seems that everyone has adjusted to each other, but I am just not getting eggs. My birds are all between 18 months and 2 years old. Also, many of the hens are losing their feathers on their backs and are pretty bald in areas. Is this normal? I have not found any parasites, and they all seem to be eating well. I feel like they have plenty of room, and it will be almost doubled this weekend. Currently, their fenced yard with coop is 25x40 feet. Plus, they get to roam our three acres when we are home, so they get to free range a lot. I despurred my big roo before we took in the rescues, and that seemed to help my girls, as a lot have begun to grow new feathers. Any advice, or should I just keep doing what I'm doing? Thanks!