They free-range during the day, but at night I'd like them to go into their coop. I'd also like them to use their nesting boxes, which they usually do, but sometimes I find a stray egg here and there around the property. I'm wondering if I have their coop too close to the chickens. They have separate areas, but they can see and hear one another as they're only a few feet apart. Could this be the problem or is it something else?