Here we have an Eastern Milk Snake (Lampropeltis triangulum). These snakes are harmless, beneficial constrictors that help control rodent populations in your backyard. In spite of their considerable size (reaching almost 3 ft) and beautiful coloration, they are rarely seen. When cornered, a milk snake may hiss, vibrate its tail tip (imitating a rattlesnake), and even strike at you. However, its bite is harmless. Give them some space and any snake will slither away – likely never to be seen again. The common name ‘Milk Snake’ comes from an old, mistaken belief that the snakes drink milk from sleeping cows!