I have five hens...ex bats and usually 4 eggs. However, for the last 2 weeks have noticed signs of remaining egg yolk on the perches. Just before this, one of my hens....do'nt which started laying soft shelled eggs. So, I think this is the egg that is being eaten, AND I know who is eating it....naughty Lucy!!! bless her. As I start to it clear away, she's up there in the henhouse trying to gobble up the bits she could'nt reach. She was the smallest of the 300 hens rescued that day, and no feathers. It could be that she is the one laying the soft shelled egg then pecking it resulting in spilled egg because she will peck at anything, including me.....though not the other hens..and certainly not malicious,.too sweet natured. She is like a toddler that feels things via the mouth. She feels things via her peck. It's difficult to stop her because, by the time this happens I'm at work. But one of these days........................