Pantherophis bairdi

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Baird's Rat Snake

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Colubridae
Genus: Pantherophis
Species: P. bairdi
Binomial name
Pantherophis bairdi
Yarrow, 1880
Synonyms

Coluber bairdi
Yarrow, 1880
Elaphe obsoleta bairdi
Dowling, 1952
Elaphe bairdi
Conant & Collins, 1991

The Baird's Rat Snake (Pantherophis bairdi or Elaphe bairdi) is a species of non-venomous rat snake, native to the United States in the Big Bend region of western Texas, and northern Mexico in Coahuila, Nuevo León, and Tamaulipas. The epithet bairdi is in honor of renown American zoologist Spencer Fullerton Baird.

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[edit] Description

The Baird's Rat Snake can reach 25 to 55 inches in length. It is typically orange-yellow in color - but can be lighter, to a bright yellow, or darker, to a salmon color. The snake has four stripes from neck to tail. Its underside is generally gray to yellow, darkening near the tail.

[edit] Behavior

Like most rat snake species, the Baird's Rat Snake's primary diet is rodents. Though, they will also eat birds if they can catch them, and juveniles often eat lizards. They are typically more pleasantly tempered than other rat snake species. They are oviparous, laying a clutch of up to 10 eggs that takes about 3 months to hatch. They prefer semi-arid, rocky habitats.

[edit] Taxonomy

Pantherophis bairdi was once considered to be a subspecies of the Eastern Rat Snake, Pantherophis obsoletus, and it is closely related, but has enough distinct morphological characters that it was reclassified again as its own species. In 2002, the genus Elaphe underwent an extensive revision, and all North American Rat Snakes were reclassified into the genus Pantherophis, though it has not been widely accepted and many people still refer to the species as Elaphe bairdi.

[edit] References

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