This is the bird feeder that the hummingbirds prefer. When I tried a fancier model not one bird came to feed.
I think it was the shiny metal copper top and feeding holes that they avoided. The metal became hot from the sunshine and the shiny reflections must have scared the tiny birds.
I cleaned the cheap plastic feeder that I bought at Walmart and filled it with sugar water. I used 8 rounded tablespoonfuls in a cup of water. Hot water helps dissolve the sugar. Then I let it cool before hanging it on the pole. There is no need to add a red coloring to the water.
The birds were back showing they prefer the cheap plastic jar-like feeder to the expensive metal and copper feeder!