And what a grouch! Crotalus viridis viridis. The Prairie Rattlesnake.
This picture is a few years old. I was out with a friend on her ranch and we came upon this character. She hates snakes. I mean hates as in ethnic cleansing. Nobody had a shootin' arn so she ups and avails herself of modern technology! Calls the house on her cellphone and asks daughter #1 to bring her a shovel. Soon the pickup arrives and Mr. Slinky has an unfortunate confrontation with a piece of primitive hardware.
Live and let live is just fine, 'til you have to deal with a nose-bit cow or a dog swelling up like a dirigible. It'll definitely make a believer out of you where shovels are concerned.