Just a quick question:As I thought everyone learned as a kid... look at the pupils. Slits like a cat-- kill it. Round pupils? Grab it and take it home as a pet.
There is no "viper head". And moccasins have a variety of pattern variations. This is the only way to be sure. Otherwise, you'll be killing hognose snakes (look like rattlers) and water snakes (moccasins) left and right.
The coral snake is the only venomous snake in North America with round pupils, but you are unlikely to ever encounter one, and certainly will recognize its coloration if you do.
someone posted a bunch of pics above. All you need to look at is the eyes.
Will the snakes be patient and allow you to get close to thoroughly look at their eyes?



