I have found 9 different species of snake on my 4 acres. If I find one I take a picture and then leave it alone. I used to catch and keep them all the time growing up in FL. But now they are much more fun doing their own thing out in the world. Here is a scarlet king phrase/description that might be easier to remember and not get confused. The two danger colors red and yellow (black is not used as a danger symbol) next to each other are dangerous.
Everyone here in SoCal goes crazy about gophers and then goes out and kills all the rattlesnakes they can. Think about it. A rattlesnake has infrared vision. It is probably the most effective gopher hunter of all time. But you might never see one get a gopher down a burrow. Just leave them alone.