The trixie natura bird house features open sides and a large surface for easy and generous feeding of wild bird food the bird house roof is layered with a special coating the feeder can be suspended from anywhere and offers lots of landing places to wild birds including on the roof the pine bird house is weather proof the large protective roof overhang keeps the food dry size diameter 42 x 24 cm please note this item has coated with a non toxic water based varnish the varnish provides