Some birds – Robins, Cardinals, Phoebes, to name a few – prefer at least one side to be open in their nesting and roosting arrangements. Our Wayside Shelter was designed to provide shelf-nesting birds protection and warmth during winter. The landing perch makes it easy for birds to make a quick entrance, while the efficient sloped roof resists snow accumulation and allows heat to be trapped at the back of the shelter. Attach to a pole or tree facing south or east. If attaching to a building, place up near the eaves and out of prevailing winds. 6-1/2" H x 16-3/4" W x 9" D.