Hi, Carp- This may seem like an old-fashioned solution, but have you considered getting a few cats? My cats don't let anything live in my yard, and all of my bird/bunny/vole/mole/whatever problems have been over since I've adopted them. Some of the critters may be big and paunchy, but the kitties are quick and deadly! You do have to be able to deal with the gifts they like to present though. I do not recommend a kitty-door unless you like dead critters in your house. Of course, I do know someone with one big fat lazy cat and a groundhog problem, but if you get a few young ones, they're bound to keep many of the undesireable critters away. Of course if you are a bird lover, you may not appreciate the concept of them using the neighbors' bird feeders as bait. ;) -jackieblue Healer of Bland Food