i would agree with luna in that they sound like horders. it might have started out with the best of intentions, then got out of hand, or they liked the attention that the "exotics" were bringing them. i would call aspca and tell them what you know. have them do a "drop in" where they arnt notified of an inspection, cuz if they know its going to happen, im sure they clean up in a hurry. best of luck