Eastern Ratsnake
Pantherophis alleghaniensis • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Commonly found throughout the eastern United States, ranging from southern Vermont and New Hampshire, south to Florida, and west to the Appalachian Mountains and the Gulf Coast.
Look up Eastern Ratsnake in the Snake Encyclopedia →Venomous Status
Non-venomous
Danger Level
Harmless; they pose no significant risk to humans. While they may strike if cornered or handled roughly, their bite is superficial and not dangerous.
Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Conservation
Least Concern (IUCN). Generally abundant, though they face threats from habitat fragmentation and intentional killing by humans who mistake them for venomous species.
Physical Description
A long, slender snake with a black or dark brown dorsum, often featuring faint blotches or a 'kinked' appearance. The throat and chin are typically white or cream-colored. Eyes have round pupils. Scales are weakly keeled.
Size & Dimensions
The specimen appears to be an adult approximately 3.5 to 4 feet long. Adults typically range from 3 to 6 feet (91-183 cm), with some reaching nearly 8 feet.
Habitat
Highly adaptable found in deciduous forests, wetlands, swamp edges, abandoned buildings, and agricultural areas. They are excellent climbers (arboreal) and are often found in tree hollows or rafters.
Behavior & Temperament
Primarily diurnal but can be nocturnal in hot weather. When threatened, they often 'kink' their body to disrupt their silhouette or vibrate their tail in leaf litter to mimic a rattlesnake. Generally docile but will defend themselves if necessary.
Diet & Feeding
Diet consists primarily of rodents, birds, and bird eggs. They are active foragers and powerful constrictors that hunt both on the ground and in trees.
Reproduction
Oviparous (egg-laying). Females lay clutches of 5-27 eggs in early summer, typically in rotting logs or leaf mulch, which hatch in late summer or early fall.
Venom Profile
Non-venomous - no medically significant venom.
Look-alikes
Often confused with the Black Racer (Coluber constrictor), which has smooth scales and is more slender, or the Northern Watersnake (Nerodia sipedon), which has much heavier keeling and a thicker body.
Conservation Status
Least Concern (IUCN). Generally abundant, though they face threats from habitat fragmentation and intentional killing by humans who mistake them for venomous species.
Cultural Significance
Highly valued by farmers and homeowners for their ecological role in controlling rodent populations. They are frequent subjects of 'creepy-crawly' folklore due to their ability to enter attic spaces.
Notable Features
Famous for their 'kinking' behavior where they hold their body in a series of tight accordion-like waves to blend into the shadows of branches or rocky terrain.