The Bomford Risk Assessment Model 1 provides a model of the risk to Australia of non-indigenous animals based on data collected for introduced species in Britain and the United States of America using parameters including taxonomy, climate matching, geographic range, and success of establishment elsewhere. Impactīoa constrictors have a proven record of success as an invasive species having successfully established non-native pest populations in locations such as Dade County, Florida in the USA and Cozumel Island, Mexico.

However, in addition to the browns and creams seen in Boa constrictor colouration, carpet pythons typically have an olive green colouration. Native carpet pythons reach similar sizes to Boa constrictors and also have blotches, stripes or cross bands. The coloured patterns aid in camouflaging the snake under natural conditions, allowing the species to evade detection and assist it to hide from and ambush its prey. The Boa constrictor generally displays distinctive patterns on the body, of jagged lines, ovals, diamonds and circles, with typical markings often described as “saddles”. Colouration of the Boa constrictor species ranges widely with tan, green, red and yellow colouration combinations. The Boa constrictor is non-venomous and has an arrow-shaped head. The Boa constrictor is considered to be one of the world’s largest snake species with an average length of around 3m.

The Boa constrictor ( Boa constrictor) originates from Central and South America, including northern Mexico and north-western Argentina, where a total of 10 subspecies of the Boa constrictor occur.

Yellow boa constrictor