possible experiments with hummingbirds
hello,I was asked to design an expreriment on their hummingbird's habits and I wondered if i could put tape water in one feeder (with the 1:4 sugar concentration) and destilated water in the other (with the same concentration) to see which of the the birds would preffer.
My question is: could that hurt them at any point? if ther's no harm in doing it, why would they preffer one over the other one?
Thank you very much