THey are not endangered where I live, we have plenty of timber rattlers. Still not suppose to kill though.... Daughter came across one at a creek crossing. She is not afraid of snakes, but this one was well over 5 ft. She came to my house with a picture and I suggested we go get it. She said, NO you don't understand, this one was really big..... She took a picture and counted 18 rattles. I don't usually mess with the bigger snakes, but I really wanted to go see it. And, just before anyone comments, it was not shiny...lol....