My chickens have been pretty good at laying one egg per day for the past month or so. Occasionally someone would miss a day, but last week, I went from 3-4/day to 2/day then just 1 and for the last two days I haven't had an egg at all. There are no shells left in their nest, I thought they might have eaten one or something. I don't know what is happening to my eggs. Any clue? Could it be something wrong with all my chickens or an egg predator?