I would still claim them. A pet deposit is a pet deposit, and your potential leasor should be aware of what you have, cage or no cage. Rental properties can range from no pets at all to whatever you have bring it, to a deposit per pet, and anything in between. I would suspect many leasors do not know what a sugar glider is, so it might fascilitate your search to explain their needs as being similar to a bird's for them to grasp the size of the cage and potential size of the mess. Much easier to be up-front about it than to have an eviction notice later for violating terms of lease. If I were leasing property I'd be much more concerned about damages a dog could do to a property than a pair of gliders. Gliders don't rip up carpet, make huge stains, chew doorframes to shreds, or tear up fences. (Not that your dogs do but I've seen the damages that can happen.)