Snake Identifier
Coachwhip (Masticophis flagellum)
Ccoachwhip, Masticophis flagellum 2 by Glenn Bartolotti, via Wikimedia Commons, licensed under CC BY-SA 4.0
Colubrids

Coachwhip

Masticophis flagellum

A slender, exceptionally fast-moving colubrid named for its braided, whip-like tail pattern.

Venomous?
Non-venomous
Adult length
1.2-2.4 m (4-8 ft)
Range
Southern United States and northern Mexico

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Overview

The coachwhip is a long, slender, fast-moving snake of open habitats across the southern United States, named for scale patterns resembling a braided leather whip toward the tail. It is among the fastest-moving snakes in North America, actively hunting rather than ambushing prey.

Coloration varies considerably across its range, from nearly solid black in the east to reddish or tan tones farther west, sometimes leading to confusion with other species.

How to identify it

  • Slender, whip-like body, often darker near the head and lighter toward the tail
  • Tail scales arranged in a braided pattern resembling a whip
  • Large eyes and a somewhat narrow head not sharply distinct from the neck
  • Smooth scales and round pupils
  • Distinguished from racers by the tail's whip-like scale pattern and generally larger size

Habitat & range

Prefers open, dry habitats including sandhills, prairies, deserts, and scrubland across the southern United States and northern Mexico, often basking in open sunny areas.

Behavior, diet & reproduction

Highly active, fast-moving diurnal hunter that pursues lizards, small mammals, birds, and other snakes with keen eyesight. Known for holding its head up while moving through grass to scan for prey and threats. Egg-laying, with moderate clutch sizes.

Frequently asked questions

Is the coachwhip venomous?

No, it is entirely non-venomous.

How fast can a coachwhip move?

It is one of the fastest snakes in North America, capable of quick bursts of speed while fleeing or hunting.

Why is it called a coachwhip?

Its tail scales form a braided pattern resembling a plaited leather whip.

What does it eat?

Lizards, small mammals, birds, and other snakes, hunted actively using keen vision.

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