Hello All - we have lived in our home for 12 years and we are just now refurbishing a chicken coop/mini barn so we can have chicks!! I have a question about the older type silver nesting boxes. Do they just need to be cleaned up and then they are ready to use? They do have perching bars (not sure if that is the right term) running across the front of them. Any help at all would be very useful!! We are soooo excited!