Gray Ratsnake (also known as Central Ratsnake)
Pantherophis spiloides • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: spiloides
Southeastern and Central United States, ranging from East Texas and the Mississippi River east to the Appalachians, and north into the Great Lakes region and parts of southern Ontario (Canada).
Look up Gray Ratsnake (also known as Central Ratsnake) in the Snake Encyclopedia →Venomous Status
Non-venomous
Danger Level
Harmless; they pose no medical threat to humans or pets. While they may bite if cornered or handled roughly, the teeth are small and cause only minor scratches.
Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: spiloides
Conservation
IUCN Least Concern. However, local populations in Canada are listed as 'Endangered' or 'Threatened' due to habitat loss and fragmentation.
Physical Description
Grey or light tan background with dark brown or black blotches (saddles). The head is distinct from the neck with large eyes and round pupils. Scales are weakly keeled. The belly is usually white or cream with a checkered pattern. Note the characteristic 'kinked' body posture often seen when they are stationary.
Size & Dimensions
The specimen in the image appears to be a sub-adult or adult, likely 90-120cm. The species typically ranges from 91 to 183 cm (3-6 feet), with a record length of approximately 250 cm.
Habitat
Extremely versatile; found in deciduous forests, edge habitats, swamps, and agricultural areas. They are highly arboreal and frequently inhabit tree hollows or human structures like barns and attics from sea level to over 600 meters.
Behavior & Temperament
Generally docile but can be defensive. When threatened, they often 'kink' their bodies to break up their outline, vibrate their tails in dry leaves to mimic a rattlesnake, and may release a foul-smelling musk. Mostly diurnal or crepuscular, becoming more nocturnal in hot summer months.
Diet & Feeding
Specialized predators of rodents and birds. They are powerful constrictors that often forage actively in trees, raiding nests for eggs or chicks, and hunting small mammals in fields and barns.
Reproduction
Oviparous (egg-laying). Females lay clutches of 5 to 30 eggs in late spring or early summer, usually in hollow logs, compost piles, or loose soil. Young hatch in late summer or early autumn.
Venom Profile
Non-venomous - no medically significant venom.
Look-alikes
Often confused with the Northern Watersnake (Nerodia sipedon), which has heavier keeled scales and a thicker body, or the Eastern Fox Snake. It is also sometimes mistaken for the venomous Timber Rattlesnake due to similar patterns and defensive tail-vibration.
Conservation Status
IUCN Least Concern. However, local populations in Canada are listed as 'Endangered' or 'Threatened' due to habitat loss and fragmentation.
Cultural Significance
Highly valued by farmers and homeowners for ecological pest control, as they consume large quantities of destructive rodents. They are one of the most common 'barn snakes' in North America.
Notable Features
Outstanding climbers with a 'loaf of bread' cross-section shape that helps them grip vertical surfaces. They are famous for appearing in unexpected places, such as high inside rafters or climbing vertical brick walls.