1.【STRONG SUCTION CUPS】 Bird feeders design with 3 ultra-strong suction cups to stay put even with many birds dining at once. So sturdy, It can even be used as a squirrel feeder!2.【Suitable for different weather conditions】: our bird house is made of acrylic, is strong and durable and offers a long service life, is not easy to fade, odourless and shatterproof, so that the roof of the feeder resists various weather conditions to prevent rain and snow.3.【FITS FOR WILD NORTH AMERICAN BACKYARD BIRDS】Show your neighborhood birds some love. It’s one perfect choice for North American backyard birds. It allows unobstructed, up-close views of the beautiful wild birds in your neighborhood such as Cardinal, Gold Finch, Bluebirds, Chickadess and other backyard birds.4.【Easy installation】: before installation, you need to dip the suction cup in water for 2 minutes and then wipe the glass with a damp cloth. Take the suction cup out of the water and install it on the bird feeder. Press the suction cup by hand to expel the air in the suction cup, and then pick it up from the glass plate.5.【ENJOYMENT FOR CHILDREN, CATS, & THE ELDERLY】Maybe you are looking for great way to teach your curious child about nature and birds—or you're trying to keep your lazy cat entertained throughout the day— or maybe you’re looking for a way to help your elderly parents or grandparents feel at peace— or looking for one unique gift for bird lovers- Our Window Bird Feeder will provide hours and hours of wholesome enjoyment for all ages!