So I have a friend who is moving to Germany and i offered to take in 4 of her hens. They are about 20 mths old. I have 5 hens already so I slowly introduced the flocks. My concern is one of the EE has a weird white patch on her comb. My friend said she has had it a long time and it had to do with calcium. But I can't find anything on it at all. She does also lay very long slender eggs that are covered with deposits so I wonder if it is a calcium issue? That's my first question. Second. Het hens are fed the same diet as mine but they all seem so small and thin. Could it be because mine are free range and hers were kept in tight quarters? Will they bulk up or should I be concerned? I have searched their feathers for pests and didn't see anything at all. Third, I'm concerned about another of the chickens, I'm attaching pictures but does she appear to be molting or should I be worried all around about the new flock staying with my original 5?