The hummingbird is the smallest bird weighing about 0.056 ounces and measuring around 3 inches. It’s interesting that this bird can fly backwards. Apart from insects, the hummingbirds have the fastest metabolism of all the animals. They can also drink nectar more than their own weight in a day. The average lifespan of this smallest bird is around three to five years. A relatively longer life than the most smaller mammals.
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| A Hummingbird |
