2019. 9. 12. 19:56ㆍ■ 菩提樹/Borisu
■ 20190113 SUN 벌새 한마리 길을 묻는다
■ Hummingbird
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Four hummingbirds from Trinidad and Tobago |
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Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Apodiformes |
Family: | Trochilidae Vigors, 1825 |
†Eurotrochilus Florisuginae Phaethornithinae Polytminae Lesbiinae Patagoninae Trochilinae For an alphabetic species list, see List of hummingbird species |
Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera,[1] they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics. They are small birds, with most species measuring 7.5–13 cm (3–5 in) in length. The smallest extant hummingbird species is the 5 cm (2.0 in) bee hummingbird, which weighs less than 2.0 g (0.07 oz). The largest hummingbird species is the 23 cm (9.1 in) giant hummingbird, weighing 18–24 grams (0.63–0.85 oz). They are specialized for feeding on flower nectar, but all species also consume flying insects or spiders.
Hummingbirds split from their sister group, the swifts and treeswifts, around 42 million years ago. The common ancestor of extant hummingbirds is estimated to have lived 22 million years ago in South America. They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rates, which vary from around 12 beats per second in the largest species to around 80 per second in small hummingbirds. Of those species that have been measured during flying in wind tunnels, their top speeds exceed 15 m/s (54 km/h; 34 mph). During courtship, some male species dive from 30 metres (100 ft) of height above a female at speeds around 23 m/s (83 km/h; 51 mph).[2][3]
Hummingbirds have the highest mass-specific metabolic rate of any homeothermic animal.[4] To conserve energy when food is scarce and at night when not foraging, they can enter torpor, a state similar to hibernation, and slow their metabolic rate to 1/15 of its normal rate.
벌새
벌새 벌새는 벌새과에 딸린 새로, 새 중에서 가장 작다. 현재 약 320종이 있고 그 중 작은 벌새는 몸이 5cm이고 몸무게는 2.8g에 불과하다. 벌처럼 붕붕 하는 소리가 날 정도로 날개를 빠르게 움직여서 벌새라고 한다. 모습이 아름다워 나는 보석이라고도 ...
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벌새 는 벌새과(Trochilidae)에 속하는 새들의 총칭이다. 몸은 대체로 작으며, 가장 작은 것은 몸길이 약 5cm, 체중 1.8g으로 새들 중 제일 작으나 큰 것은 21.5cm, 24g에 달하는 것도 있다.남북 아메리카 특산으로 북은 알래스카까지 분포하나, 대체로 열...
위키백과 -
우이칠로포크틀리(Huitzilopochtli)
아스텍족이 믿는 태양과 전쟁의 신. (나우틀어로 '벌새'라는 뜻의 huitzilin과 '왼쪽'이라는 뜻의 opochtli에서 유래) Uitzilopochtli 라고도 씀. | 아스텍 사람들은 죽은 전사(戰士)들이 벌새들로 환생(還生)한다고 믿었고 남쪽을 세계의 왼쪽으로 간주...
다음백과
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■ 20190113 SUN 벌새 한마리 길을 묻는다
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