Head shape is a terrible indicator.
It’s been an indicator for anybody that I’ve been around for as long as I’ve been alive. And growing up in rural Texas I saw many more snakes that here in the cooler Atlanta area. Copperheads resting under wood, stone, anything flat was standard, all ponds had cottonmouths/water moccasins, snakes were just part of life.
From AI: In North America, most venomous snakes have triangular-shaped heads that are wide at the back and narrow towards the neck. This is in contrast to non-venomous snakes, which typically have round heads. However, some exceptions exist, such as the coral snake, which has a rounded head similar to its cobra cousin.


