Eastern Milksnake
Lampropeltis triangulum • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Lampropeltis, Species: Lampropeltis triangulum
Venomous Status
Non-venomous
Danger Level
Harmless; they pose no threat to humans or pets. Bites are rare and only involve minor scratches from small teeth.
Geographic Range
Eastern North America, ranging from southeastern Canada (Ontario and Quebec) through the northeastern and central United States, as far south as Alabama and as far west as Minnesota.
Conservation Status
Least Concern (IUCN); however, they are often killed due to confusion with venomous snakes or suffer from habitat loss and road mortality.
Physical Description
Slender body with smooth, shiny scales. The pattern consists of grey or tan ground color with dark brown or reddish-brown blotches outlined in black. A distinctive Y- or V-shaped light marking is usually present on the back of the head/neck. Eyes have round pupils.
Size & Dimensions
The specimen in the photo appears to be an adult, approximately 60-90 cm in length. Adults typically range from 61 to 91 cm (24-36 inches), with a record length of about 132 cm.
Habitat
Generalist species found in forests, open woodlands, rocky hillsides, fields, and suburban areas. They are frequently found under cover objects like logs, rocks, or debris and prefer elevations from sea level to over 1,200 meters.
Behavior & Temperament
Secretive and primarily nocturnal or crepuscular. Generally docile but may vibrate its tail in dry leaves to mimic a rattlesnake or strike if feeling threatened. They spend much of their time'hidden underground or under cover.
Diet & Feeding
Active foragers that use constriction to kill prey. They eat a wide variety of animals including mice, voles, small birds, eggs, and other snakes (including venomous species).
Reproduction
Oviparous (egg-laying). Females lay clutches of 2 to 17 elliptical eggs in early summer, which hatch in late summer or early fall. No parental care is provided after laying.
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 venomous Copperhead (Agkistrodon contortrix), which has hourglass-shaped bands and vertical pupils, and the Timber Rattlesnake. Also resembles the Corn Snake (Pantherophis guttatus), which has keeled scales.
Conservation Status
Least Concern (IUCN); however, they are often killed due to confusion with venomous snakes or suffer from habitat loss and road mortality.
Cultural Significance
Named 'milksnake' due to a false folk myth that they would sneak into barns to suck milk from cows. Ecologically beneficial as they control rodent populations.
Notable Features
Member of the kingsnake genus, meaning they have a natural immunity to the venom of local pit vipers and will occasionally prey upon them. The smooth, glossy scales are a key diagnostic feature.