Twice in the last 6 months I have found an egg under thier perch. I have 4, 8 foot perches for 23 chickens. They have plenty of room. They also have 9 nest boxes of which they normally only use 4. go figure. Anyway, twice now I have found an egg under the perches. Do they just slip out while they are sleeping or did my chicken actually get on the ground below the perch in the poo to lay an egg in the night? I have a light go on in the coop at 3 am so it could have happened after the light goes on. Most of the girls lay after 9 am and on into the day. I rarely have an egg before 8 am.