Perky-Pet’s finest top fill hummingbird feeders are the most convenient feeders ever! The feeder’s patented top fill technology allows you to simply unscrew the cap, pour in your nectar, and you’re ready to feed the hummingbirds. The 16 oz capacity of the shatterproof plastic bottle is the perfect amount for keeping the hummingbirds coming back to your feeders. The 4 feeding ports feature soft, decorative flowers that are more life-like than any other port on the market. With a built in ant moat on the lid, you can be sure that ants won’t be a problem for this feeder.