Window bird feed ideal to watch your favorite birds right outside your window. Holding up to 1-pound of seed, this bird feeder features a crystal-clear plastic construction that makes bird watching easy from any angle. Features a large, inviting entrance that will fit even large birds like cardinals. Attaches securely to windows with four suction cups, which provide a strong sturdy hold to prevent the feeder from falling off. For your convenience, this feeder features a removable seed tray to allow for easy filling and cleaning without detaching from the window. Plus, the feeder's angled roof helps to keep the feeder cleaner. To securely hang a window feeder, it is important to thoroughly clean your window first. Once clean, moisten the feeders suction cups with a bit of water or vegetable oil then apply the feeder to the glass. The moisture will create better suction, so the feeder stays in place.