Short Story long. We kept finding animal poop on the ledge between the pool and the spa. I was suspecting possums. One afternoon sitting in the backyard, we saw this Iguana appear. They are very uncommon in our area. We asked about it to our backyard neighbor. Indeed, they have a free range Iguana. I am thinking about laying a bird spike device I saw on Amazon. Any other suggestions? Guns, crossbows, sling shots, tasers, pepper spray etc. are not considered a viable option in our household.