Yeah, being cooped up makes my birds antsy sometimes too. I've found that filling suet feeders with fruits and veggies or hanging a head of lettuce or cabbage in the coop helps to keep them occupied.
I like to keep it on hand as well. Blue-Kote comes in both a spray and a liquid form, I currently have a small bottle of the spray because that's the only form of it our local farm store sells. To put it on a bird's comb, I like to go outside and spray some on a couple stacked paper plates, then take a small clean paintbrush and gently paint it on the bird's comb. A little Blu-Kote goes a long way.
