flying burns a lot of energy and means they have to feed a lot, which in turn makes hummers very eager to defend their patch of flowers, even if it entails flying a lot. To save energy, they will perch whenever possible, and will try to do so when feeding if there's a convenient flower stalk.
Available visiting slots next week (am= 10-12.30, pm=3-5): mon july 31 am, tues aug 1 am, pm; wed aug 2 pm, thur aug 3 pm only : email paul.adams%stonybrook.edu with your request.
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