1.Efficient Drainage System The brick roof of this wild bird feeder protects it from wind and rain, and the bottom shelf features 2 compartments with drainage holes to prevent rain from accumulating and keep the bird food dry and mildew . Provides a comfortable place for birds to feed 2.CLOSE VIEWING BIRDS The bird feeders for windows are made of clear plastic materials that provide a view to observe birds up close. It brings nature right to your window. 3.WEATHERPROOF Bird feeder outdoor is equipped with strong suction cups, which can provide a stable grip even in extreme weather conditions. Install this bird feeder at a certain height (no worry about falling off), you can enjoy bird watching while deter unwanted guests such as rats and squirrels. 4.LARGER FEEDING TRAYS This clear bird feeder combines food and food compartments into a single integrated design. The compartments of the tray contain different types of bird seeds. The deep tray contains more bird food and reduces charging frequency. The removable tray makes it easy to clean and fill the seeds and can be easily stored for storage when not in use.