I am really interested in starting a rabbit colony. I've kept rabbits in the past but having them all in separate cages was just overwhelming and I stopped. The colony idea seems a lot better for me and the rabbits. But I have a few questions/concerns. When looking for pen ideas, I come across many pens that don't have any sort of roof or covering. Is this common in colony setups? i would imagine rabbits would be able to escape into their little shelters for aerial predators but raccoons getting in would seem to be a bigger problem. How do you predator proof your pen? Also, do you allow pregnant does to kindle in the colony or do you remove/separate them?