Join Date: Jan 2002
Location: Vinson Massif, Antarctica
Female iguanas need a place to dig down into loose soil to lay eggs, not just a nest box like a bird. Sometimes it has to be fairly deep for it to be suitable to them. What I ended up doing for my iguana is getting a really large cat box and filling it up to the entrance hole with a mix of organic peat and play sand, and put a heat pad under it. She dug down to the very bottom corner, right where the heat pad was, to lay her eggs. They can reach maturity and start laying eggs anywhere from two to four years of age. If she does have eggs, you should be able to feel them in her - quite often you can actually see obvious lumps on the outside.
Males go "into season" randomly in captivity, and that can lead to a remarkable change in their personalities and activity level as they prowl for a mate. For this, I've seen people use a green stuffed iguana-looking animal as something for him to dominate. It may sound silly, but you'd be amazed at their need to control their territory. They are not really solitary animals in the wild, each male will control an area around several females and protect his territory from rival males. Just make sure the stuffy doesn't have any eyes or projecting/loose parts that can easily be bitten off and accidentally swallowed, as they can be pretty rough sometimes. I've been considering this method for my male, who has the run of my house, but has been in the prowl lately and is finding his way into places he's never gone before.
Really though, iguanas are rather active animals and don't understand the point of a cage. They see a whole room outside of it, and want to go there and are not easily deterred even if there is nothing wrong with their enclosure. Things like pacing and nose rubbing can become like a nervous habit.
She sits in her corner, singing herself to sleep.
Wrapped in all of the promises, that no one seems to keep.