Fieldgrade, what do you feed the hummers?
Sugar water.
I was going through 10#'s of sugar a week last year.Best price I can find is $11 for a fifteen pound bag so it can get a little expensive but the entertainment is worth it.
One checker last summer asked me if I was making moonshine when I showed up at the checkout with 5 bags. I laughed and said "I wish but I'm just feeding Hummers" she said "too bad, if you were making shine I was going to ask you out on a date"....