Patented Design with: The window bird feeder features a unique design with a built-in double barn that provides ample food storage capacity, reducing the need for frequent refills, especially convenient during holidays or cold months. Attracts Various Birds: The feeder is designed to attract a variety of birds, allowing colorful visitors to easily enter through the large 7.5-inch entrance, including larger birds like Cardinals, providing a delightful bird-watching experience. Squirrel-Proof Design: Equipped with a horizontal bar door guard and a feeding tray that requires manual extraction, the feeder is designed to prevent squirrels from accessing the bird food, ensuring that it remains secure from unwanted guests. Versatile Installation Options: The feeder offers two installation options - using adjustable suction cups or adhesive to affix it to the window. Both options provide strong retention even in harsh weather conditions, giving you the flexibility to choose the most suitable installation method. Ideal Gift for Bird Lovers and Cats: The window bird feeder is not only a great gift for bird enthusiasts but also provides entertainment for cats who enjoy watching birds. The design offers a close-up view of bird activity, fostering a deeper connection with nature and stimulating natural hunting instincts in cats. Product Name: Window bird feeder Material: Plastic Product size: about 20.8*20.8*13cm/8.19in*8.19in*5.11in Topic: Outdoor Feeding Machine Color: Transparent Package: Window bird feeders * 1pcs