My hen stays in a rabbit hutch. I hadn't many eggs in the last week and a half and today I went out to feed, there was an egg in there, but left it, was going to get it later, to see if its fertile. Well, this afternoon I went out check the water (keep knocking it over) and the egg was gone! Its a rabbit hutch. The egg was in the nesting box/sleeping area. The front of the hutch has bars that are about 1 to 1 1/2 in. wide. What possibly could be happening to the eggs?