Racer
Coluber constrictor • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Coluber, Species: C. constrictor
Widespread across North America, extending from southern Canada through the United States down to parts of Mexico and Central America.
Look up Racer in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Coluber, Species: C. constrictor
Conservation
IUCN Red List status is Least Concern, facing local threats primarily from habitat fragmentation, road mortality, and intentional persecution.
Physical Description
Slender body with smooth scales, large eyes with round pupils, and a patterned juvenile phase featuring dark blotches along the back which often fade into a uniform grey, brown, or olive coloration in adulthood.
Size & Dimensions
The pictured specimen appears to be a juvenile or subadult around 40 to 60 cm in length. Adults typically range from 90 to 150 cm, with maximum recorded lengths approaching 180 cm.
Habitat
Highly adaptable, inhabiting open fields, prairies, brushlands, desert edges, pine barrens, and forest borders, generally preferring areas with abundant low vegetation for cover.
Diet & Feeding
Active diurnal forager feeding on a wide variety of prey including insects, frogs, lizards, rodents, birds, and other snakes, subduing prey by pressing it against the ground or pinning it rather than true constriction.
Reproduction
Oviparous, laying clutches ranging from 3 to 30 eggs typically in underground burrows, decaying logs, or under rocks during early summer.
Look-alikes
Frequently confused with gopher snakes (Pituophis catenifer) or rat snakes (Pantherophis spp.), but distinguished by smooth rather than keeled scales, larger eyes, and a more slender body profile.
Conservation Status
IUCN Red List status is Least Concern, facing local threats primarily from habitat fragmentation, road mortality, and intentional persecution.
Cultural Significance
Plays an important ecological role in controlling rodent and insect populations, though frequently misunderstood and persecuted due to misidentifications.
Notable Features
Known for exceptional speed and agility when fleeing from predators, earning the common name 'racer' due to its rapid movement through grass and brush.