Pituophis catenifer sayi

Also known as Bull Snake, Western Bullsnake, Gopher Snake

Bullsnakes are heavy-bodied constrictors famous for dramatic defensive displays, vibrating their tails against dry vegetation and exhaling through a specialized vocal valve to mimic a rattlesnake's rattle. These powerful reptiles spend much of their time underground hunting burrowing rodents across North American grasslands and agricultural fields. By consuming vast numbers of crop-damaging pests, they serve as essential ecological anchors throughout the Great Plains.