Well they wont eat your chickens but they sure are ugly. I moved back in the woods about 9 years ago. These leopard slugs started showing up from time to time. Now it seems like there everywhere. They came from Asia,and are only found around rural areas(my place is no wheres near urban). If you have them they were imported at some time(could of been a shipment of lumber?) The great thing about these slugs is that there carnivorous, and eat all those other slugs that eat your flowers. I've seen them twice as large as this one(about 9 inches). I even watched one pick up & eat a piece of dog food one night. I tried using them for fish bait,fish wont touch em. This little guy was in my bathroom! God only knows where he came from.