Yes they are very tiny.
* Their heart rate can reach as high as 1,260 beats per minute
* breathing rate of 250 breaths per minute, even at rest
* Hummingbirds consume more than their own weight in nectar each day, and to do so they must visit hundreds of flowers daily.
* Hummingbirds are continuously hours away from starving to death and are able to store just enough energy to survive overnight.
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