I have had the best time all week watching the hummingbirds. I have to fill this tiny feeder daily because it only holds 1/2 cup of nectar. That's perfect too because it isn't out there long enough to ferment. I had one bird buzz around my head waiting for me to finish my filling station duties. They actually chug-a-lug the liquid until as many as 6 air bubbles go up the tube as they feed. Goodness they are hungry (or lazy), I can decide which! my photo