My 13 year old is raising holland lops. We were doing some research and found some information about keeping them in a colony. We have one male and would like 4 females. Now we have several cages (we have two females, one had her first littler this morning). We have a coop that we made for the chickens, until our chicken math made it too small. It has two coops with 4 nest boxes on each floor. (they are stacked) and then a big run. It is portable and so they can get fresh grass often. We think we are going to wire the bottom though, cause the male keeps digging. So just wanted to know your thought on it and if anyone has had success in colony breeding. They are pedigreed so we can only have one male so we can pedigree the babies.