I was given a black shiny hen (sitting on a bunch of eggs!). She was pretty wild, but is finally closer to being sociable. When I was able to pick her up, I discovered that she doesn't have many feathers on her chest (?). It feels soft and seems to bulge out a bit. She seems healthy and has just started laying again. So...does she have some sort of deformity or does she belong to a breed that has this characteristic?