Take your boat (you will find some by the shore) and you will get your iguanas on those islands. Blue & Yellow Macaw 2. Sunglow Boa 2. Rainbow Boa 3. Scarlet Macaw 3. The ones I found that are endemic to the island are: Parrots: 1. Red-tailed Boa Lizards 1.
The iguana can be found primarily in Guarma and throughout New Austin. The latter of the two can only be encountered during Chapter 5 of the story in which — skip ahead now to avoid mild spoilers — you’re whisked away to the isle of Guarma. Red Dead Redemption 2 has two main iguana types, the Desert Iguana and the Green Iguana. Those looking to kill and skin an iguana have a few locations to roam. This is how I've done it, way before I reached Guarma.

Green Iguana Booby 1. A population can also be found on the large island on the eastern side of Flat Iron Lake. But it seems you have passed the story beyond that location of your camp so the iguanas are to be found on the little islands off coast west of Rhodes. The Desert Iguana is a moderately sized animal in Red Dead Redemption 2. I've spent the last 6 hour scouring Guarma for any animals I can find since there ARE missable ones. The Iguana is a species of animal found in Red Dead Redemption 2.
This page covers the Desert Iguana location in RDR2, and how to get a Perfect Iguana Skin. Guarma is a tropical island featured in Red Dead Redemption 2.This is a special location that is not part of the main map of the game, as it is accessed only during Chapter 5 of the Story Mode.. Guarma is a sugar cane plantation island, and is described to be the second island east of Cuba. The iguana, for example, is an animal that many Red Dead Redemption 2 players likely have seen very few of, if at all. Great Green Macaw Snakes 1.