 They have been observed burrowing in canals, levees, and dikes and along seawalls in southern Florida.If an individual does not dig their own, they may even use gopher tortoise burrows or usurp those of the Florida burrowing owl.The green iguana is a large lizard and is probably the largest species in the iguana family, though a few in the genus "Cyclura" may match or exceed it in weight.