Snake Identifier
Eastern Rat Snake

Eastern Rat Snake

Pantherophis alleghaniensis • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: Pantherophis alleghaniensis

Found in eastern and central North America, primarily ranging from New York and New England south to Florida, and westward toward the Appalachian Mountains and parts of the Mississippi River basin.

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Family

Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: Pantherophis alleghaniensis

Conservation

IUCN Red List status is Least Concern. Primary threats include habitat fragmentation, road mortality, and intentional killing due to human encounters.

Physical Description

Slender to moderately robust body with a pattern of dark blotches (black, brown, or gray) over a lighter background. The head is slightly distinct from the neck, and the belly typically has a checkered or mottled dark and light pattern.

Size & Dimensions

Specimens typically range from 100 to 180 cm (3.6 to 6 feet) in total length, with maximum recorded lengths approaching 210 cm.

Habitat

Occupies a wide variety of habitats including deciduous and coniferous forests, rocky terrain, agricultural fields, swamp edges, and frequently suburban areas. They are accomplished climbers often found in trees, barns, and attics.

Diet & Feeding

Diet consists primarily of rodents, birds, bird eggs, and small bats. They are adept climbers and active foragers that dispatch prey through constriction.

Reproduction

Oviparous species. Females typically lay clutches of 12 to 20 eggs in decaying vegetation, hollow logs, or loose soil during the early summer months.

Conservation Status

IUCN Red List status is Least Concern. Primary threats include habitat fragmentation, road mortality, and intentional killing due to human encounters.

Cultural Significance

Highly beneficial to agriculture and human settlements due to their proficiency in controlling rodent populations, leading to high tolerance among farmers.

Notable Features

Exceptional climbing ability, capable of scaling vertical brick walls and moving seamlessly through high tree branches. They can also produce a foul-smelling musk when threatened.

Identified on 10/15/2026
Eastern Rat Snake - Pantherophis alleghaniensis | Snake Identifier