Why snakes are endangered?

Snakes that have made the endangered list can always point to the same problem, loss of suitable habitat. Consider the eastern diamonback rattlesnake. Once fairly common from southeastern North Carolina to Louisiana, the species has become quite rare in NC, and is threatened in some other states. Still common in Georgia and Florida, and declining in Alabama. The population in NC is critically endangered, with an estimated population of less than 1500 in the lower coastal plain as of 2009. (Shuler, Robbins, et al, NC State University survey)