Gadjit Soda Bottle Window Hummingbird Feeders (Pack of 2) - Fill plastic soda bottle with nectar, twist on feeding tray, suctions to outdoor window (Red) Want to lure pretty hummingbirds to your yard? Try this hummingbird feeder! Uses an empty soda bottle to hold nectar. Feeder suctions to an outside window for up close bird watching Each kit comes with a red feeding tray, yellow feeding perches, and a window bracket with suction cup. You get 2 feeders.