We have 10 hens and they were born last 4th of July. They started laying about a month ago. Every thing was going great but we have now gotten 3 huge eggs that also contain another whole egg inside. Like those little russian nesting dolls! This is not a double yolked egg. It is literally, a double egg! Whole shelled egg inside another whole shelled egg. They also all like to lay in one nesting box inspite of us offering them 11 nesting boxes. We are getting some broken eggs because of them crowding each other. Are my girls just a bit odd or is this normal? I am a bit worried about the poor hen or hens who goes through laying these huge eggs! I'm surprised she hasn't packed her bags and left!