I feed the birds everyday but have never considered that the bees also might need some food. According to this article gardeners are being urged to leave out energy drinks for tired bees to try and help the declining bee population. The RSPB has been inundated with calls reporting bees lying on the ground unable to fly. They recommend leaving out an egg cup filled with two tablespoons of sugar and a tablespoon of water so that tired bees can boost their energy levels.