Its true bullsnakes will out compete rattlers and even occasionally eat them, but at my place I have plenty of both. "Red racers" too. Biggest bull snakes I've ever seen in abundance around here. They crawl out onto the road to sun themselves in the spring and sadly, a lot of them get run over by cars. These red racers, which I had never seen before moving out to rural Pueblo county, are bright pink when they shed their skins for a day or two. Interesting creatures.