I read on byc about someone having a problem whith a chicken eating her eggs. Today at wal-mart I saw a colender that looked as if it might solve the problem as it would be difficult for the hen to standup and peck the egg there . Has anyone used the shape of a colender for a nesting box? I would suggest if a hen is eating her eggs, possibility of them being soft-shelled? Or she might be upset about something,or lacking something in her diet?