Common Watersnake
Nerodia sipedon • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Natricinae, Genus: Nerodia, Species: Nerodia sipedon
Most of the eastern and central United States, from southern Ontario and Quebec in Canada, south to Louisiana and west to Colorado.
Look up Common Watersnake in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Natricinae, Genus: Nerodia, Species: Nerodia sipedon
Conservation
IUCN Status: Least Concern. Populations are stable across most of their range, though they are often killed due to confusion with cottonmouths.
Physical Description
Heavy-bodied with strongly keeled scales. Coloration consists of dark crossbands near the head that break into alternating dorsal and lateral blotches further down the body. Base color varies from tan to grey, with dark brown or reddish-brown markings. Pupils are round.
Size & Dimensions
Typically 61–107 cm (24–42 inches). The specimen in the image appears to be a sub-adult or adult of approximately 60-80 cm based on the surrounding vegetation.
Habitat
Primarily freshwater habitats including ponds, lakes, rivers, streams, and marshes. Often found basking on rocks, logs, or overhanging vegetation. Frequently near the water's edge.
Diet & Feeding
Primarily piscivorous (fish) and carnivorous (amphibians). They use active foraging and ambush techniques to catch prey, which they swallow alive without constriction.
Reproduction
Viviparous (gives birth to live young). Mating occurs in spring, and females typically give birth to 15–30 young in late summer or early autumn.
Conservation Status
IUCN Status: Least Concern. Populations are stable across most of their range, though they are often killed due to confusion with cottonmouths.
Cultural Significance
Crucial for controlling fish and amphibian populations in local ecosystems. Frequently encountered by fishermen and often misunderstood due to their resemblance to vipers.
Notable Features
Excellent swimmers and divers that can stay submerged for up to 90 minutes.