MagicChicken, until you have time to do all you want, for the moment if you have some Oxine I would spray everything with it (1/8 tsp per quart in a spray bottle is what I use), turn the ladders sideways so they can perch on the wide side of the 2x4s if at all possible, add fresh shavings, or sand if you have access to some (maybe they won't kick it all to the sides) or find some straw, and actually, if you can find bales of straw, you could even leave them in bale form and place them where the birds would be jumping off their roosts so they have an interim landing pad. I'm in the desert too, it is rare for anything to stay wet longer than a few hours even after a good rain. For the bumbles, you might try what someone on another thread did, mix sugar and ... oh rats, I'll have to go look and come back, think it was iodine? Anyway, she mixed into a paste, put on the bumble, and wrapped with vetwrap or duct tape, and never had to do surgery. WAY simpler. I'll look it up and post later. Just my random thoughts on how you might deal with this.