I used a lot of those little green blocks.I bought them by the bucket.There was a woman that lived 1000 feet from me that rehabbed birds of prey.Owls,hawks,and eagles.She always did necropsys on the dead ones,and found the ones local to us died from mice that had ingested the poison.There were two of us right here that had been hitting the mice pretty hard with that poison over the last year or so back then.We never said anything,but we laid off,and she told me that the birds poisoned by that green stuff suddenly dropped off to zero.That was over 10 years ago,and I no longer toss those blocks under and around everything in my outbuildings.I use the bucket traps,and those electric zappers.The big ones are called Ratzappers.Those are the ones with two steel plates that are charged up,and when the mouse steps on both he gets zapped.
