• Bird Academy
      Bird Academy
      Compare your thoughts from before this lesson to what you know now about hummingbirds. Did anything surprise you?
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    • Anne
      Participant
      Chirps: 4
      I found the information about the anatomy of hummingbirds muscles for flight interesting.
    • Amanda
      Participant
      Chirps: 4
      I am fascinated by the twisting wing motion that produces lift on upward, as well as downward strokes. I was also surprised to learn about the dimorphic bills in the Carib hummingbirds.
    • Sonali
      Participant
      Chirps: 4
      I was amazed by how their wings twist in the upstroke and there is double lift generated in their wings...was wonderful to know that their wings is mainly all hand structure. Also I loved the mechanism by which a hummer drinks nectar - like two parallel straws that are much more evolved than you can imagine! Plus the fact that their tongues wrap around their brain when not protruding!
    • Samara
      Participant
      Chirps: 2
      I learned how the bo e structure allows them to hover
    • Lindsay
      Participant
      Chirps: 2
      I posted some images below from Arenal Lodge in Costa Rica to show that the iridescence is not easy to picture from the wrong angle. Hopefully of interest to people.
    • Lindsay
      Participant
      Chirps: 2
      IMG_0693IMG_0692
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      • Elizabeth
        Bird Academy
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    • How wonderful to learn about hummingbirds.  There is much to their functions and survival.
    • CAROLYN
      Participant
      Chirps: 2
      Do they build nests so they will have a place to do their torpor?
    • Shawn
      Participant
      Chirps: 2
      I was shocked to learn they can beat their wings 30 to 130 times/second.  They are such amazing animals.
    • Tam
      Participant
      Chirps: 6
      It’s very interesting that hummingbirds temp. can drop to almost freezing for 20 to 30 minutes and will not react to stimulation unless their body warms up to 40 degrees or so. Which can leave them more prone to predators at night.
    • Vaughan
      Participant
      Chirps: 2
      The temperature to which a hummer can lower its body surprised me.
    • Patrick
      Participant
      Chirps: 3
      function of tongue
    • Luis Lauro
      Participant
      Chirps: 21
      IMG_3644 Hummingbird / Pachystachys lutea (Golden Shrimp Plant). Photo: Monterrey, Nuevo León, México.
    • Luis Lauro
      Participant
      Chirps: 21
      IMG_3627 Hummingbird / Pachystachys lutea (Golden Shrimp Plant). Photo: Monterrey, Nuevo León, México.
    • Luis Lauro
      Participant
      Chirps: 21
      I didn't know hummingbirds would die in a few hours if they are unable to feed because they do not have fat stores. It was surprising they have a high metabolism, so we need to support them with water and trumpet-type flowers with high nectar quality coming from our flowers from our region.
    • Jason
      Participant
      Chirps: 6
      I can not believe how cold the hummingbirds get, and how much they eat compared to humans! Truly amazing.
    • Benji
      Participant
      Chirps: 2
      The view of the torpor on the thermal camera was so cool! I hope someday I'll be able to do that as well, very interesting way of showing torpor!
    • I hadn’t thought about it, but it’s amazing to hear that hummingbirds don’t have much fat reserves and would starve in a few hours if they didn’t have ways of conserving energy. I’m glad that humans can survive longer without food if we need to!
    • Via
      Participant
      Chirps: 21
      It was surprising to find out that they also eat insects! However, how do they avoid predation while they are in torpor?
    • Jared
      Participant
      Chirps: 2
      I wonder if dropping their body temperature during torpor provides any side benefit for avoiding predation?
    • I did not realize that hummingbirds spend so much of their time perched to conserve energy. I also found the description of torpor interesting and want to learn more about that.
    • I also wonder how they avoid predators while in and coming out of torpor.
    • Rose
      Participant
      Chirps: 2
      I didn't realize they fed on tree sap and insects!