I do the deep litter method and once a week I mix it up and lay new pine shavings down. When I was mixing the litter today I found my 1st 2 eggs hidden in the litter in the corner of the coop under the nest boxes. They were both frozen and 1 was cracked. I tossed the cracked one. My question is, can I keep and eat the other one or should I toss it? Also how high should the nest boxes be? Here's a pix of 4 of the 8 nest boxes.