Eastern Milksnake

There is a significant amount of variation among milk snakes in terms of size. Depending on subspecies, they can be as small as 14 in (36 cm) or as large as 72 in (180 cm) long. Adults in the wild apparently average from 38 to 225 g (1.3 to 7.9 oz) in North America. However, unusually large milk snakes can become rather bulkier than average-sized adults and potentially weigh up to 750 to 1,400 g (1.65 to 3.09 lb), though high weights as such are generally reported from captivity. Males typically are larger than females in maturity, although females can be bulkier than males similar in length as well. Generally more tropical populations, from Mexico and further south, reach larger adult sizes than milk snakes living in the temperate zones. Milk snakes have smooth and shiny scales and their typical color pattern is alternating bands of red-black-yellow or white-black-red; however, red blotches instead of bands are seen in some populations. Some milk snakes have a striking resemblance to coral snakes, in Batesian mimicry, which likely scares away potential predators. Both milk snakes and coral snakes possess transverse bands of red, black, and yellow. Experts now recognize that common mnemonics that people use to distinguish between the deadly coral snake and the harmless milk snake are not 100% reliable. Some coral snakes do not have the typical banding colors or patterns. …

Milk snakes can be found from the southeastern extreme of Ontario, Canada, into southeastern Maine and all the states of the Eastern Seaboard of the United States of America, south to Florida, Alabama, Mississippi; from central Minnesota to Colorado, Nebraska, and the Dakotas; they are found in the foothills of the Appalachian Mountains; and in Georgia, Tennessee, Kentucky, Arkansas, Missouri, Kansas, Oklahoma, Texas and Louisiana. There are further subspecies found in nearly all of Mexico, from the state of Sonora east to the Gulf coast of Tamaulipas and throughout the rest of south and central Mexico; all through Central America and into Colombia and Ecuador.

Milk snakes are mostly nocturnal, especially during summer months. They are primarily terrestrial and attempt to blend in with ground litter. However, they are able to climb and swim. These snakes tend to be secretive and remain hidden. When threatened, a milk snake will usually first try to escape. If cornered or harassed, it may vibrate its tail and strike energetically, though they are non-venomous, have only tiny teeth and their tails lack a rattle. Unless frightened, milk snakes move slowly. They are often fairly docile.