Window bird feeders offer the opportunity to see birds close-up while in the comfort of your own room. This feeder with its innovative features is sure to give you hours of birdwatching pleasure. The Perky-Pet Window Bird Feeder features a 1-pound seed capacity, 3 feeding ports, an easy-fill lift off cover and a quick release tray. You can mount the feeder to any window with the 2 suction cups included. The clear plastic shatter-proof acrylic reservoir makes it easy to monitor seed levels, so you can keep it filled for the hungry birds. These innovations make for one of the most economical and convenient window bird feeders on the market. Easy to clean, too. Remember to clean all of your window bird feeders at least twice a week, more often in very warm climates or seasons.