They are cute, but not good that someone released them. Thing can get out of hand easily. I would start capturing them. When they are old enough.....50 rabbits...maybe 5-8 a litter with no predators....YIKES. As sad as it sounds, I would start putting them down before the neighbors have them chewing on things they should and burrowing where people don't want them. This is sometimes what leads to rabbits not being allowed in certain places and responsible owners/breeders can't have them. Only takes one irresponsible owner to drag everyone else down.