ok I went out and got some varity of seed mix for birds ,rodents and other mammals. I was just wondering is they any thing I could give them ( not planning on this ) that may be toxic or even kill them for eating food wise ? you know like with dogs no large amounts of cholocate. I hate to kill off my entire rodent factory cause I gave them (example ) a banana and that a food that kills them in a few seconds or what ever..