Northern Copperhead
The northern copperhead covers the Appalachian Mountain region and the eastern and southeastern U.S. Adult snakes measure 24 to 36 inches in length. According to pittsburghzoo.org, the snake is a light copper to orange-brown color with broad, reddish-brown "saddle" markings along its back. Northern copperheads mate in the spring and give birth to offspring in late August or early September.
Osage Copperhead
The primary range of the osage copperhead is in the states of Kansas, Iowa, Illinois, Missouri, Oklahoma and Nebraska. It measures 24 to 36 inches in length. According to venombyte.com, the Osage copperhead is generally a light tan to reddish-tan, with dark brown to reddish-brown bands. The bands are hourglass-shaped. Like other copperhead subspecies, Osage copperhead young can inflict venomous bites immediately after birth.
Southern Copperhead
This snake is located in the eastern, central and southern Unites States, and in the eastern part of Texas. Adults measure 24 to 26 inches long. Their body color is pale brown to light tan, typically with a pink tint. Southern copperheads are active during the day in early spring and late fall, and nocturnal in the summer when the temperature is higher.
Broad-banded Copperhead
The broad-banded copperhead's range is from central Texas to the southern border of Oklahoma and Kansas. The snake measures 20 to 30 inches in length. According to the University of Michigan Museum of Zoology, the broad-banded copperhead is light tan with broad reddish-brown or copper bands that have a thin white border. It is most active after summer rains. In the fall, the snake is a less active hunter and prefers to wait to ambush its prey as opposed to chasing it down.
Trans-pecos Copperhead
This snake is found in Texas and parts of Mexico. It measures 24 to 36 inches long. Coloring is similar to the broad-banded copperhead, except for a black-and-white patterned underside. The broad-banded copperhead typically has a whitish or lightly patterned underside. The trans-pecos copperhead wiggles its tail as a lure for prey, attracting lizards or frogs in the vicinity.