Hi, there is an iguana who has been sitting on my back patio for 2 days. He doesn't seem to be afraid of us. My husband got about 2 ft. from him yesterday and he didn't move. Crawled under our fire pit last night. Husband tapped his tail with his foot (didn't see him in the dark) and he didn't move. I don't know much about them so I don't know how old he is. However, body is green and head and neck are grey. He has only moved a span of about 10 ft since yesterday. Anything I can do?