02/10/2026
A beautiful Cottonmouth (Agkistrodon piscivorus) from a metro Atlanta floodplain swamp, displaying typical Cottonmouth defensive behavior. As usual this snake first attempted to flee, and when I moved him into the open to take a few photos he entered this classic defensive posture. Unlike their more ornery close relative the Copperhead, Cottonmouths are often reluctant to strike, preferring to sit with their mouth open hoping to scare you away. Although I don’t recommend getting this close to one, if you spend a lot of time in their habitat you have likely stepped this close to a Cottonmouth several times without even noticing. The Cottonmouth you see poses little threat, as long as you tread carefully and avoid stepping on other snakes that may be well hidden nearby while you are distracted by the more obvious snake in front of you. Like many of our venomous species, Cottonmouths can be surprisingly social animals and are often seen in small groups sharing prime basking locations or overwintering structures. If you come across one, there are likely more nearby even if you don’t see them yet. This is nothing to be scared of and a completely normal part of nature, but being aware that you are in snake habitat and paying attention to where you put your feet goes a long way in preventing snake bite.