Pituophis - Wikipedia

Pituophis — Wikipédia

Minnesota Seasons - gopher snake

Pacific gopher snake - Wikidata

Pituophis catenifer pumilis - Wikidata

Pituophis catenifer - Wikipedia

Pituophis catenifer affinis - Wikipedia

Pine Snake, NatureRules1 Wiki

Cape gopher snake - Wikipedia

Classification of North American Snakes

Pituophis catenifer - Wikipedia

Can snakes be identified by their color, pattern and size? If so, how accurate are these methods? - Quora

Bullsnake (Pituophis catenifer sayi) - JungleDragon