Southern Black Racer

The Southern Black Racer (Coluber constrictor priapus) is one of the more common subspecies of nonvenomous snakes in the Southeastern United States. The name priapus refers to the proximal spines of the hemipenes being much enlarged into basal hooks, which is characteristic of this subspecies. These snakes are quite active during the day, which increases the chance of sightings. They will eat almost any animal they can overpower, including, rodents, frogs, toads, and lizards. They have been known to charge at people in an attempt to frighten them, but will usually retreat – if challenged. Members of this species generally do not tolerate handling – even after months in captivity – and will typically strike and flail wildly every time they are handled. These snakes are usually thin with a jet black dorsal side with a grey belly and white chin. They are quite fast, giving rise to the name "racer".

The Southern Black Racer is an excellent swimmer and climber, and is aptly named because it has incredible speed and is very difficult to capture. When cornered it will fight—its tiny sharp teeth can deliver a painful but nonvenomous bite. Escape is its best defense, but the animal has been known to occasionally turn and pursue humans or other potentially threatening animals that have ceased their own pursuits. Like many other species, the Black Racer will vibrate its tail in dry leaves and grass and the resulting sound is reminiscent of the noise made by a Rattlesnake. The snake favors wooded areas, brush and thickets although it is also commonly seen in suburban yards. While hunting it can travel at good speed even with its head elevated well off the ground.
(credit: http://en.wikipedia.org/wiki/Coluber_constrictor_priapus)