Eastern Milksnake
Lampropeltis triangulum • Order: Squamata; Suborder: Serpentes; Family: Colubridae; Subfamily: Colubrinae; Genus: Lampropeltis; Species: L. triangulum
Venomous Status
Non-venomous (Aglyphous)
Danger Level
Harmless; they may bite if handled roughly, but lack venom and pose no significant risk to humans or pets.
Geographic Range
Southeastern Canada through the Northeastern and Midwestern United States, ranging as far south as Georgia and as far west as Minnesota.
Conservation Status
IUCN Red List: Least Concern. Generally stable, though threatened by habitat loss and road mortality.
Physical Description
Grayish or tan background color with reddish-brown or chocolate-brown dorsal blotches outlined in black. Characteristic light 'V' or 'Y' shaped mark on the back of the head. Features smooth scales, round pupils, and a white/black checkerboard belly pattern.
Size & Dimensions
The specimen appears to be an adult around 60-90 cm. The species typically ranges from 61 to 90 cm (24-36 inches), with a maximum record of 132 cm.
Habitat
Generalist species found in meadows, old fields, rocky hillsides, and deciduous forests; often found around human structures like barns and woodpiles.
Behavior & Temperament
Primarily nocturnal but active during the day in cooler months. Secretive and terrestrial. When threatened, they may vibrate their tails to mimic a rattlesnake and strike if further provoked.
Diet & Feeding
Active foragers that use constriction to kill prey. They eat small mammals, birds, eggs, and are known to consume other snakes (ophiophagy).
Reproduction
Oviparous (egg-laying). Females lay clutches of 2 to 17 eggs in early summer, which hatch in late summer or early autumn.
Venom Profile
Venom Type
Non-venomous - no medically significant venom.
AI-generated — see a qualified source if acting on this. For any snakebite, call emergency services immediately.
Look-alikes
Commonly confused with the Northern Watersnake (Nerodia sipedon), which has keeled scales, or the Copperhead (Agkistrodon contortrix), which has vertical pupils and hourglass patterns. Often confused with rattlesnakes due to tail-vibrating behavior.
Conservation Status
IUCN Red List: Least Concern. Generally stable, though threatened by habitat loss and road mortality.
Cultural Significance
Named for the folk myth that they would enter barns to 'milk' cows, a physiological impossibility; ecologically valuable for controlling rodent populations.
Notable Features
The 'milksnake' name is a misnomer based on their affinity for barns where rodents—their actual prey—are abundant. They are highly skilled at navigating human-disturbed environments.