pacific gopher snake sub-adult slithering on trail

nonvenomous carnivorous animals wild keeled scales spotted camouflage slithering sliding pattern moving slither animal attack bay area california brown catenifer cautious closeup colubrid colubridae crawling danger fauna gopher snake harmless joseph grant county park macro natural nature outdoor outdoors pacific pituophis portrait predator reptile reptilia santa clara strike subadult united states viper wildlife young sub-adult trail usa clar