An old-timer stopped by today to see the new chickens, and he had a suggestion, said I should close off the access to under the coop because they would build nests and lay eggs under there instead of inside in the nest boxes. So far (3 days) they all go under there frequently. When something scares them, they are all under there until they get over it. There is 8" from the bottom of the siding to the ground, then 7 1/2" of floor joist , so I think they could stand up when full grown. The back 2 sides are closed off with 1/2" hardware screen with apron, can't get in or out back there. Any thoughts?