My green iguana is just over a year old (her name is Daisy). I became her new owner early this summer when her last one could no longer afford her. So far I am very pleased with how well she has acclimated to her new environment and to me. She is already accustomed to being held by me and being taken outside. She does not like her leash, which I expected, but it's a precaution for those rare occasions when something startles her and she makes a break for it.
Part of our routine is for me to take her to the local community garden on sunny days, where no pesticides are used and there are plenty of safe things she can nibble on. Most of the time she just finds a spot in the grass that she likes and basks, watching the birds and insects around her. She appears to enjoy this a great deal, at least until someone shows up with a dog or making lots of noise. Yesterday was such a day, with high temps & humidity that is somewhat uncomfortable for me but ideal for her. At one point I found her "stomping" her front feet. Her back legs were motionless, one stretched behind and the other to the side. She would lift one front foot, set it down, and immediately lift the other. She did this for several minutes and then resumed her previous alert but content sitting position. When I got her home and put her in her enclosure, she did it again. In the grass I thought perhaps she was trying to flatten it to sit on it more comfortably (although she's never done it before). But I use paper on the bottom of her enclosure; there's nothing to flatten, so why did she do it again there?
She didn't seem at all disturbed or distressed either time. It was more similar to how a cat will knead a surface before lying down on it, as though making a nest. Except Daisy didn't lie down after doing it, just resumed sitting still and looking around.
Since she didn't seem stressed in either case, I don't think it's a negative behavior, but I am quite curious what exactly it does mean? Can anyone offer an explanation? I'd appreciate it! Thanks!