Make Your Own Hummingbird Food

Hello, Yes, Red food coloring is harmful to the hummers. I worked for an avian Veterinarian and they said it would kill them.

No. What is this latest " let me feed some phony stuff to the hummers. I'd love to fool them"? Hummers need sugar water. Always have, always will. If they have flowers for nectar they prefer them. In the season when they cannot get enough nectar, we help them to survive with sugar water. Please be kind and feed what is needed.

No! Stevia is a sweetener for couch potatoes who can't resist sweets; it has almost no calorie value for hummingbirds, who work and need energy. Even greener stevia is close to calorie-free.
And yes, avoid the 'safe' food colors. Color the feeder.

I don't know for sure, but I'd say no. I know honey and other things besides sugar is not safe.

I would not do that! The sugar provides calories for energy, and stevia is popular with humans as it is so low calorie. Also, it may not be metabolized safely by the hummers. Stick with ordinary table sugar.