I have 4 hens 7 months old. This last Sunday I caught 2 of them laying what I think was their first eggs in the leaves under some spruce trees. Monday they were confined to their coop and run for obvious reasons. I have wall mounted nesting boxes where I put one of the famous eggs and I also put a box on the floor, both with leaves in them. They refused to lay anything on Monday. Today one of them made a mess of the nesting areas and laid an egg instead on the board under the roosts where I have shavings piled. The other three did nothing. Is this normal? How long does this foolishness last?