Those of you with rodent problems could try snakes

. I think I have told the story of a landlord I had in Illinois who once ran a fish market. He had trouble with rats being near thee river. He talked to a rural mail carrier and asked if he was afraid of snakes. When the reply was "no", he asked him to catch all the black snakes he saw and put them in a burlap bag. He paid for each snake, but I don't recall how much. The snakes were released in the basement of his shop and the rodent problem vanished, and when the rats were gone, so were the snakes. He continued to put a snake or two into the basement and if there were no rats or mice, the snakes simply left. In North Carolina, we lived in an older neighborhood, and one of the large houses had fallen into disrepair and was torn down. When that house was demolished, the rats living there went into neighbor hood properties. Our kids lost the horns on their trikes since the rats chewed the plastic parts off the handlebars. We had a cat, but he just couldn't keep up and I set the snap traps until all the critters were gone, at least in our house. The neighbors took care of things in their own way.