Push the knob on the back of the headgear inward and turn to fit to adjust the size. Adjust the top band as needed to find the perfect fit.

Push in with a twisting motion to secure the stoppers into the holes. The clear tubes can gently be adjusted upward to hold the nectar, if necessary.

Slowly squeeze the nectar bulb to fill it. Fill the flower feeder tubes with nectar when you're ready to use the HummViewer.

Step outside and start attracting hummingbirds! Remove any existing feeders, which will aid in attracting the birds to your new feeder.