I was only makeing a suggestion of what I found on BYC I just blow stuff away around here. the only way to humanly kill on my farm is fill it fulla lead. Personally I could care less about rats and mice if you want to protect the very animal that brings all the diseases into our flocks. MG/MS/ Microplasmosis/ Pullorium/Coriza/Salmonilla the list goes on and on and on. But as for us here on this farm I dont care if its a little mouse or a giant rat result is the same .22 marlin.