Columbian Red Tailed Boa Fact Sheet

Class: Reptilia
Order: Squamata
Family: Boidae
Genus: Boa

boa constrictor constrictor

Life span:

20 years in the wild; 40 years under human care

Egg Gestation:

120-150 days

Number of young at birth:

30 on average

Age of maturity: 18 mo-3 years

Females 7-9 ft, Males 6-8 ft


Females, the larger sex, usually weight 20-30 lbs

Size at birth:

Around 24 in long

Description: Typically tan with approximately 20 dark dorsal saddles running the length of the body.  The tail blotches are usually red, orange or brown with black edging.  Laterally there are tan, brown or black blotches (circular or diamond shaped) spaced along the saddles. Undersides are yellowish, spotted with black.




  • Range from the Sonoran desert in Mexico through Central America and outlying islands, to far northern Peru.
  • May forage in the trees but are mainly terrestrial and live in hollow logs, mammal burrows, etc.
  • Eat rodents, birds, iguanas, and monkeys
  • The boa’s loosely hinged jaws can be stretched far apart, enabling it to swallow animals with bodies much larger in diameter than the boa’s head.