Yesterday morning I fed our 10 chicks, about 8 week old, all appeared well. By evening , noticed the back of one named Bear had a large bare spot. I observed another chick, Goldie, pecking at Bear so all the new feathers had been pecked off. The ends of the feathers remain in the skin like when you don't get all of a sliver removed. My questions, do I need to remove remaining feather ends and how long before new feathers grow back? I believe the chicks have out grown the stock tank they are currently living in. I have removed Bear and another chick to another container. My daughter and I are building a very large coop but we are about a week out from completion.