We have two 4 month old rabbits - which we were told by the breeder and the vet are both boys. One of them is this morning running around collecting straw and hay in its mouth and making what looks like a nest in a corner. I've not seen any fur pulling yet. Both rabbits are in together at the moment - should i separate them immediately. We have a two tier hutch, so i could keep them apart. Is there anything i particularly need to know if she does have babies? Any help and advice from anyone woudl be great thanks.