Crotalus pyrrhus It was hot and sweaty and we worked into the night. York found this male fairly quick. Our first white speck. Yuma County, AZ. August 2008. We hopped to another canyon and I came across this. See it? At night, in situ with a flashlight. Yuma County, AZ. August 2008. Speck at the base of a tree. Yuma County, AZ. March 2015. Even posed they blend in so well. Yuma County, AZ. March 2015. A light adult. Yuma County, AZ. March 2015. I see you. Yuma County, AZ. March 2015.