Eastern Milksnake
Lampropeltis triangulum • Order Squamata, Suborder Serpentes, Family Colubridae, Subfamily Colubrinae, Genus Lampropeltis, Species L. triangulum
Found primarily in eastern North America, ranging from southeastern Canada down through the eastern and midwestern United States, extending south to the Carolinas and Kentucky.
Look up Eastern Milksnake in the Snake Encyclopedia →Family
Order Squamata, Suborder Serpentes, Family Colubridae, Subfamily Colubrinae, Genus Lampropeltis, Species L. triangulum
Conservation
IUCN Red List status is Least Concern. Populations are generally stable, though locally threatened by habitat loss, fragmentation, and illegal collection for the pet trade.
Physical Description
Slender body with a pattern of dark brown or reddish-brown blotches bordered in black, separated by lighter grey, white, or yellowish background bands. Head is relatively indistinct from the neck with a light-colored 'Y' or 'V' shaped marking on the back of the neck. Scales are smooth and glossy. Pupils are round.
Size & Dimensions
Specimen pictured appears to be a juvenile, roughly 12 to 18 inches in length. Adults typically range from 24 to 50 inches (60 to 130 cm) in total length.
Habitat
Inhabits a wide variety of habitats including fields, rocky hillsides, mixed woodlands, agricultural areas, and forest edges. Typically found under logs, rocks, boards, and other surface cover.
Diet & Feeding
Diet consists primarily of small rodents, lizards, birds, bird eggs, and other snakes. They are active hunters that use constriction to subdue their prey.
Reproduction
Oviparous species that mates in the spring (May to June). Females typically lay clutches of 6 to 16 eggs in rotting logs, loose soil, or under rocks during mid-summer, which hatch in late summer or early autumn.
Look-alikes
Frequently confused with copperheads (Agkistrodon contortrix) due to the similar blotched pattern, but milksnakes have round pupils, smooth scales, and lack facial heat-sensing pits. Also superficially resembles venomous coral snakes in parts of its range, though the color ring order differs.
Conservation Status
IUCN Red List status is Least Concern. Populations are generally stable, though locally threatened by habitat loss, fragmentation, and illegal collection for the pet trade.
Cultural Significance
Historically the subject of an old folklore myth that they could milk cows (hence the common name), which is biologically impossible. They play a valuable ecological role as natural controllers of rodent and pest populations.
Notable Features
Known for their secretive, nocturnal habits and ability to vibrate their tails rapidly when cornered to mimic rattlesnakes, serving as a defensive bluff despite lacking rattles.