kish said:
Barbara, perhaps you can tell me if iguanas change colour as they warm up in the sun. We have been observing one who sits in the tree below our balcony in the morning and he/she is mostly brown with some green around it's back legs. Later in the day we see a bright green iguana in the tree. Do you think it is the same one or two very different iguanas?
what we have here is the green iguana. the one actually endemic to the island was the lesser Antillean which I believe is now extinct or close to it.
Iguanas don't have uniform colors. Usually the young iguana is bright green whole the older ones are more brown or gray. If I had to guess I would guess you are seeing two different iguanas.
There are some pictures here and an explanation by Mark Yokohama a wildlife specialist on the island.
http://www.lesfruitsdemer.org/guides/st-martin-wildlife-guide/reptiles/green-iguana-iguana-iguana/
