Green Parrot Snake (Leptophis ahaetulla: Colubridae) Despite its beauty this species is venomous, aggressive and lighting fast. These snakes can reach lengths of 1.72 m (5 ft 8 in). Photographed along a one lane gravel road leading to the summet of Cerro Toledo, Loja Province, Podocarpus National Park, Ecuador. Eastern slope of the Andes; temperate cloud forest at ca. 2,530 m (8,300 ft) elevation. The summit of Cerro Toledo is 3,150 m (10,335 ft) elevation.