Ngwini
Ngwini | ||||||||||||
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Uainishaji wa kisayansi | ||||||||||||
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Ngwini au Pengwini ni ndege wa bahari katika familia Spheniscidae. Ndege hawa hawawezi kuruka angani lakini chini ya maji huenda kama “kuruka”. Kwa kweli, wanaishi baharini nusu ya mwaka na wanarudi nchi kavu ili kuzaa tu. Kwa kawaida ngwini ni weupe kwa kidari na tumbo na weusi kwa mgongo (aina ya kamafleji). Huwakamata nduvi (krill), samaki, ngisi na wanyama wengine wadogo wa bahari. Hata kama kwa kawaida ngwini huhusishwa na barafu ya Antakitiki, spishi nyingi huyataga mayai yao kwa pwani za visiwa zenye miamba au ndani ya mashimo ambayo ngwini wameyachimba. Jike huyataga mayai mawili, lakini yule wa spishi za Aptenodytes hulitaga moja tu. Jike na dume huatamia mayai kwa zamu, lakini kwa kawaida kinda moja hutoka tu au kinda moja analishwa tu. Aptenodytes forsteri (Emperor Penguin) huzaa mbali na bahari juu ya barafu ya Bara la Antakitiki. Dume hutamia yai wakati jike anapotafuta chakula cha kumpa kinda.
Spishi za Afrika
[hariri | hariri chanzo]- Aptenodytes patagonicus, Ngwini Mfalme (King Penguin)
- Eudyptes chrysolophus, Ngwini Mashungi-dhahabu (Macaroni Penguin)
- Eudyptes chrysocome, Ngwini Mrukaji Kusi (Southern Rockhopper Penguin)
- Eudyptes c. filholi, Ngwini Mrukaji Mashariki (Eastern Rockhopper Penguin)
- Eudyptes moseleyi, Ngwini Mrukaji Kaskazi (Northern Rockhopper or Mosely's Penguin)
- Pygoscelis papua, Ngwini Papua (Gentoo Penguin)
- Spheniscus demersus, Ngwini wa Afrika (African Penguin)
Spishi za mabara mengine
[hariri | hariri chanzo]- Aptenodytes forsteri (Emperor Penguin)
- Eudyptes chrysocome (Western Rockhopper Penguin)
- Eudyptes pachyrhynchus (Fiordland Penguin)
- Eudyptes robustus (Snares Penguin)
- Eudyptes schlegeli (Royal Penguin) - labda namna ya E. chrysolophus tu
- Eudyptes sclateri (Erect-crested Penguin)
- Eudyptula minor (Little or Fairy Penguin)
- Megadyptes antipodes (Yellow-eyed Penguin)
- Pygoscelis adeliae (Adelie Penguin)
- Pygoscelis antarcticus (Chinstrap Penguin)
- Spheniscus humboldti (Humboldt Penguin)
- Spheniscus magellanicus (Magellanic Penguin)
- Spheniscus mendiculus (Galápagos Penguin)
Spishi za kabla ya historia
[hariri | hariri chanzo]- Eudyptes sp. (Chatham Islands Penguin) (Mwisho wa Quaternary? ya Visiwa vya Chatham)
- Pygoscelis calderensis (Mwisho wa Miocene ya Bahía Inglesa, Chile)
- Pygoscelis grandis (Mwisho wa Miocene/Mwanzo wa Pliocene ya Bahía Inglesa, Chile)
- Pygoscelis tyreei (Tyree's Penguin) (Pliocene ya Nyuzilandi)
Picha
[hariri | hariri chanzo]-
Ngwini mfalme
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Ngwini mashungi-dhahabu
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Ngwini mrukaji
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Ngwini wa Afrika
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Emperor penguin
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Fiordland penguin
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Snares penguin
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Royal penguin
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Erect-crested penguin
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Little penguin
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Yellow-eyed penguin
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Adelie penguin
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Chinstrap penguin
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Humboldt penguin
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Magellan penguins ndani ya shimo lao
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Galápagos penguin