I have a rat problem, wild ones, and we have put poison down, and the day after there is no rats, but then the day after that, some more appear, poison down, day after no rats, then day after more appear, and so on. Im thinking that the poison is killing the rats but once those ones are not coming back with food, some out of the nest have to come out, is this correct??, my husband thinks that they are allthe same rats, and that we are breeding mutant rats, but i dont think this is the case because rats have many babies,, so any help would be appreciated.. Tried shooting them but hubby and i are rubbish.