Some facts about Hummingbirds
- Hummingbirds are unique amongst birds because of their small size (2 - 20 g or 0.07 - 0.7 oz ).
- With the exception of insects, hummingbirds have the highest metabolism rate of any animal on earth: elevated average body temperature (approx. 40° C or 104° F), rapid heart rate (up to 1,260 beats per minute), and high breathing rate.
- They also have the largest brain (4.2% of the total body weight), the largest heart and the largest breast and flight muscles (30% of its total body mass) in proportion to body size than any other bird
- Hummingbirds are the only living birds that can rotate its wings in a circle, allowing it to fly both forwards and backwards; fly up or down, move sideways, or hover in one spot.
- Like other birds, they have no sense of smell.
- Their feet are weak and are only used perching.
In the photo a White-chinned Sapphire, Hylocharis cyanus (Apodiformes - Trochilidae), a South American hummingbird species that is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela, where it is mostly sedentary (non-migratory).
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Photo credit: ©Almir Cândido de Almeida
Locality: Ubatuba, Sao Paulo, Brazil