Eastern Ratsnake
Pantherophis alleghaniensis • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: Pantherophis alleghaniensis
Eastern and central North America, ranging from New York south to Florida, and west to parts of Louisiana and eastern Texas.
Look up Eastern Ratsnake in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: Pantherophis alleghaniensis
Conservation
IUCN Red List status is Least Concern. Populations are generally stable, though individuals face threats from habitat fragmentation, road mortality, and intentional killing due to fear.
Physical Description
Features a patterned back with dark blotches (brown, grey, or black) overlaid on a lighter grey or whitish background. The head is relatively distinct from the neck with dark markings often forming a spear-point or stripe pattern on top. Scales are weakly keeled and the body can appear somewhat loaf-shaped in cross-section.
Size & Dimensions
The pictured specimen is a juvenile approximately 35-50 cm in length. Adults typically range from 100 to 180 cm (3.6 to 6 feet), with maximum records exceeding 200 cm.
Habitat
Found in a wide variety of habitats including deciduous and coniferous forests, agricultural lands, rocky hillsides, swamp edges, and suburban areas. Highly adaptable and frequently climbs trees or utilizes old barns and abandoned buildings.
Diet & Feeding
Diet consists primarily of rodents, birds, bird eggs, and bats. Employs an active foraging strategy, often climbing to locate prey in nests or using constriction to subdue captured animals.
Reproduction
Oviparous species. Females typically lay clutches of 12 to 20 eggs in mid-summer, often depositing them in rotting logs, mulch piles, or underground burrows where warmth aids incubation.
Conservation Status
IUCN Red List status is Least Concern. Populations are generally stable, though individuals face threats from habitat fragmentation, road mortality, and intentional killing due to fear.
Cultural Significance
Highly beneficial to agriculture and human settlements due to their proficiency in controlling rodent populations. Often kept as pets in the reptile hobby due to generally calm demeanor as adults.
Notable Features
Exceptional climbing ability, capable of scaling vertical tree bark and brick walls with ease. Juveniles often have much brighter, highly contrasting patterns that fade into darker or more uniform coloration with age.