If you are seeing a lot of lizzards, the snake is probably hunting and eating them. Around here, KS, its rodents (we don't have many lizzards). If you have rodents, you will eventually have snakes. I am sure the species are different in GA, but in KS a black snake is a black snake, or rat snake. Pretty safe, but they grow to 6' long, and not that uncommon to find them in old farm houses and livestock barns.
