Before migrating, hummingbirds go on a feeding frenzy. They feed often and intensely for days, a state called hyperphagia. Ornithologists calculated that hyperphagia generates enough fuel to fly nearly 600 miles at 35 miles per hour. Hummers start feeding as early as forty-five minutes before sunrise and keep eating until dusk.
"Six hummingbirds remain feeding during the warmer hours, starting mid-morning and late into the day. Observed on feeders and Foxglove, Summersweet, Russian Sage and Bee Balm," noted Keith Declercq from Erieville, New York on September 12, 2016.