The only sugar I had in the house was turbinado, and figured if anything it would be more nutritious so i used it to make the nectar. I have seen very few hummingbirds around, and have not seen them sipping the stuff. Is it just a bad year for hummingbirds, or was using this a big mistake? And if so, how do I rectify it? I mean, obviously, other than washing out the feeders and using white sugar for the nectar.