Gotcha. I know they are venomous, and I think we have them in Wyoming, but I guess I never had the desire to get close enough to one to see if it had a rattle or not. My parents killed many a rattler when I was growing up. I remember when I was probably 3 or 4, my aunt came over to visit, and I was playing outside on the swing, and my brother was in the sandbox. My brother went inside and then my mom called to me to get inside immediately, and I had to use the back door. My aunt was waiting there, for some reason with a towel to wrap me in, and we watched through the front window as my parents both grabbed their pistols and shot the snake. I also remember my mom chopping one's head off with a garden hoe once. And we used to run over them whenever we saw one on the road. Apparently my uncle or my cousin stepped on one at some point, but fortunately stepped on its head and I assume the people with him probably used a knife to kill it before he removed that foot, but I don't know for sure. They were probably carrying guns, but I would hope they wouldn't shoot it while he was standing on it, and those things move FAST, so you wouldn't want to let it go first, either. I really don't miss those snakes. They have some in the zoo in Arnhem, so the kids have seen them and know all the stories I have about them.