Eastern Ratsnake
Pantherophis alleghaniensis • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Eastern North America, primarily east of the Appalachian Mountains from New England south to Florida.
Look up Eastern Ratsnake in the Snake Encyclopedia →Venomous Status
Non-venomous (Aglyphous - lacking specialized grooved fangs)
Danger Level
Harmless - Bites are rare and only occur if the snake is handled or cornered; resulting in minor mechanical scratches.
Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Conservation
Least Concern (IUCN). Generally stable, though threatened by habitat fragmentation and human persecution.
Physical Description
Dark gray to black dorsal color with faint patterns of lighter blotches often visible (especially in juveniles and sub-adults). Scales are weakly keeled. Head is wider than the neck, and the belly is typically light-colored or checkered.
Size & Dimensions
This specimen appears to be a sub-adult, roughly 24-36 inches. Adults typically range from 3.5 to 6 feet, with record lengths near 7 feet.
Habitat
Generalist species found in hardwood forests, swamp edges, agricultural fields, and suburban areas. Semi-arboreal, frequently found in trees or rafters.
Behavior & Temperament
Diurnal in moderate weather, becoming crepuscular or nocturnal in heat. Typically docile but may rattle tail in dry leaves, musk, or strike if threatened. Excellent climbers.
Diet & Feeding
Active foragers that feed on rodents, birds, and eggs. They kill via constriction.
Reproduction
Oviparous (egg-laying). Females lay clutches of 5 to 30 eggs in mid-summer, usually in hollow logs or leaf litter. Hatchlings emerge in late summer or fall.
Venom Profile
Non-venomous - no medically significant venom.
Look-alikes
North American Racer (Coluber constrictor) which has smooth scales; Northern Watersnake (Nerodia sipedon) which has heavier bodies and strongly keeled scales; Copperheads (Agkistrodon contortrix) due to pattern commonality in juveniles.
Conservation Status
Least Concern (IUCN). Generally stable, though threatened by habitat fragmentation and human persecution.
Cultural Significance
Highly valued by farmers for effective rodent control. Often featured in rural folklore and commonly encountered in residential attics and barns.
Notable Features
Remarkable climbing ability, often creating a 'kinked' body posture when resting to mimic a fallen branch. Known to vibrate their tails to mimic a rattlesnake as a defensive bluff.