Hummer info. for you.
Reply to a post, but I'm posting it here as well...A stronger solution of sugar to water will not deter the hummers. As a matter of fact they love it (BUT) it is very harmful to them, wrecking thier liver. Yes, the flowers have a more concentrated nectar, but it is not refined sugar.Use 1/4 sugar to 1 water.
The bees on the other hand, will go for any sugar solution, as will the yellow jackets. PLEASE don't kill the bees. They do a great deal of pollinating (remember our flower seeds and the farmers crops like cherries, raspberries, grain etc.
The yellow jackets kill and eat a lot of insects that are harmful to our plants. Hummers will always come back to your feeder and get their fair share of the sugar water.
By the way, do not put coloring in the sugar water. It too is harmful to them.