I have 7 hens. They are about 13 weeks old. While it was cooler they used to lay under the heat lamp. Now that the light is moved up they don't really use it anymore. My question is now six hens huddle into one of the laying boxes. I don't know how they huddle in there plus I don't know why they're doing this. I can't even get a good count because they are in the box. Isn't it awfully unusual that they crowd in the box? I'm really surprised that one hasn't suffocated yet. This is been going on for the last week and I'm in amazement of what they are doing. Is this normal chicken behavior?