Facts About Hummingbirds
關於蜂鳥
https://www.thespruce.com/fun-facts-about-hummingbirds-387106
2019-06-19
1）A hummingbird’s wings beat between 50 and 200 flaps per second depending on the direction of flight, the purpose of their flight and the surrounding air conditions.
根據飛行方向、飛行目的和周邊氣流狀況，蜂鳥每秒鐘扇動50-200次翅膀。
2）An average hummingbird’s heart rate is more than 1,200 beats per minute. In comparison, a human's average heart rate is only 60 to 100 beats per minute at rest.
蜂鳥的心跳頻率平均每分鐘1200次及以上；而人類在靜止不動時心跳是每分鐘60-100下。
3）At rest, a hummingbird takes an average of 250 breaths per minute. Their breathing pace will increase when they are in flight.
靜止不動時，蜂鳥每分鐘平均呼吸250次；飛行期間它們的呼吸節奏會增加。
4）The rufous hummingbird has the longest migration of any hummingbird species. These hummers fly more than 3,000 miles from their nesting grounds in Alaska and Canada to their winter habitat in Mexico.
棕煌蜂鳥是蜂鳥物種裡遷徙距離最長的，它們從阿拉斯加和加拿大的鳥巢飛到墨西哥冬天的棲息地，全程3000多英里。
棕煌蜂鳥
棕煌蜂鳥（學名：Selasphorus rufus），是一中小型蜂鳥，體長約8釐米。分佈在北美洲，北起阿拉斯加，南至墨西哥灣。主要棲息於森林、灌木叢、沼澤、草地、農田、庭院和公園中。白天活動，夜間休息，以花蜜為主食。是候鳥，有較強領地意識，且好鬥，成年雄性通常不遷移。棕煌蜂鳥壽命的最高記錄是8歲。
5）Depending on the species, habitat conditions, predators and other factors, including threats to hummingbirds, the average lifespan of a wild hummingbird is 3 to12 years.
根據物種不同、棲息地條件、天敵和其他因素，如對蜂鳥的各種威脅，一個野生蜂鳥的平均壽命是3-12歲。
6）Hummingbirds have no sense of smell but have very keen eyesight.
蜂鳥沒有嗅覺，但視覺非常靈敏。
7）Hummingbirds are native species of the New World and are not found outside of the Western Hemisphere except in a few zoos or aviaries. There are no hummingbirds found in Europe, Africa, Asia, Australia or Antarctica.
蜂鳥是新大陸的地方物種，除了在少數動物園或鳥舍沒有在西半球之外的地方發現過。歐洲、非洲、亞洲、澳大利亞、南極洲沒有發現有蜂鳥。
aviary：英 [ˈeɪviəri] 美 [ˈeɪvieri] a large cage or building for keeping birds in, for example in a zoo 大鳥籠，鳥舍（如動物園內的）
本材料源自www.51voa.com，經過本人節選、後期翻譯而成，若有翻譯的不妥當的地方，歡迎指正
