Another tip about ACV is using it to clean with. I breed Lovebirds, and that is what I use to clean all of my cages. It works better than ANY "poop off" product that you spend an arm and a leg for, it dissolves poop much better and faster (IMO) and it does prevent pathogens from growing on surfaces (or so I've heard) plus it's completely safe to use around the birds. I know this was off-topic, but I thought I would share. We go through tons of it here, and it's so cheap. I swear by it. 
