Snake Identifier
Eastern Milksnake

Eastern Milksnake

Lampropeltis triangulum • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Lampropeltis, Species: L. triangulum

Found in eastern North America, ranging from southern Ontario and Quebec south to northern Georgia and Alabama, and west to parts of Minnesota, Iowa, and Missouri.

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Family

Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Lampropeltis, Species: L. triangulum

Conservation

IUCN Red List status is Least Concern. Main threats include habitat fragmentation, illegal collection for the pet trade, and mortality from vehicular traffic on roads.

Physical Description

Features a pattern of dark blotches (brown, reddish-brown, or black) edged in black along a lighter grey or tan background body, often with a Y-shaped or V-shaped light patch on the back of the head. It has smooth scales, a relatively slender body, and a slightly distinct head.

Size & Dimensions

This specimen appears to be a juvenile or subadult around 30 to 45 cm in length. Typical adults reach average lengths of 60 to 90 cm, with maximum recorded lengths up to 132 cm.

Habitat

Inhabits a wide variety of habitats including deciduous and coniferous forests, fields, agricultural land, rocky hillsides, and river bottoms, often found hiding beneath rocks, logs, and debris at elevations from sea level up to around 2,000 meters.

Diet & Feeding

Diet consists primarily of small rodents, lizards, birds, bird eggs, and other snakes. They are active hunters and constrictors, subduing prey by wrapping coils around it and pressing tightly to restrict breathing.

Reproduction

Oviparous species that mates in the spring (May to June). Females lay clutches of 2 to 24 eggs in hidden, moist environments such as rotting logs, leaf litter, or underground burrows during early summer, with incubation lasting about two months.

Conservation Status

IUCN Red List status is Least Concern. Main threats include habitat fragmentation, illegal collection for the pet trade, and mortality from vehicular traffic on roads.

Cultural Significance

Historically the subject of an old rural folklore myth suggesting they could milk cows (hence the common name), though they are entirely carnivorous and often found near barns simply seeking rodent prey.

Notable Features

Exhibits Batesian mimicry patterns resembling other snakes within its range, which serves as a deterrent against potential predators.

Identified on 9/24/2026