African Penguin vs Common Myna
Spheniscus demersus 比較対象 Acridotheres tristis
Side-by-Side Comparison
| 属性 | African Penguin | Common Myna |
|---|---|---|
| 学名 | Spheniscus demersus | Acridotheres tristis |
| 目 | Sphenisciformes | Passeriformes |
| 科 | Spheniscidae | Sturnidae |
| 保全状況 | Endangered | Least Concern |
| 体長 | 60.0 cm (23.6 in) | 25.0 cm (9.8 in) |
| 翼開長 | 42.0 cm (16.5 in) | 38.0 cm (15.0 in) |
| 体重 | 3100.0 g (109.35 oz) | 120.0 g (4.23 oz) |
| 食性 | Small schooling fish, especially sardines and anchovies. Forages within 40 km of the colony, diving … | Omnivorous — insects, fruit, grain, and kitchen scraps. Bold and opportunistic around human settlements. |
| 一腹卵数 | 2 | 2-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
African Penguin
Rocky coastlines and offshore islands of southern Africa. Nests in burrows, under boulders, or in surface scrapes.
Common Myna
Urban areas, farmland, and open woodland. Closely associated with humans and one of the most successful avian urban colonizers.
Song & Call Comparison
African Penguin
A loud, donkey-like braying 'waaah-waaah' — hence its nickname 'jackass penguin'. Also gives softer grunts and contact calls at the colony. Highly vocal on breeding beaches.
Common Myna
A noisy, cackling chatter and melodious whistling mixed together. An accomplished mimic of other birds and sounds. Gives repeated 'mee-ow' and harsh 'quarr' alarm calls.
Geographic Range & Migration
African Penguin
Coastal southwestern Africa from Namibia to Port Elizabeth, South Africa. The only penguin species breeding in Africa.
Common Myna
Native to South and Southeast Asia. Introduced and invasive in Australia, South Africa, Middle East, and many Pacific islands.
保全状況
African Penguin
Common Myna
How to Tell Them Apart
African Penguin
Black upperparts and white underparts with a distinctive black horseshoe-shaped band across the breast. Pink patches of bare skin above the eyes help with thermoregulation.
Sturdy, pointed, black bill with a grey band near the tip
Common Myna
Brown body with a glossy black hood, yellow bill, and bare yellow skin behind the eye. White wing patches conspicuous in flight. Yellow legs.
Strong, slightly curved yellow bill
About These Birds
African Penguin
南アフリカ西部沿岸とその島嶼に生息するペンギン（体長60〜70cm）。黒い背中と白い腹に黒い縦縞、眼上部のピンクの皮膚が特徴的。Spheniscus demersus（アフリカペンギン）はロバのような「ブレイヤー」という鳴き声から「ジャッカスペンギン」とも呼ばれる。過去1世紀で個体数が97%以上減少し、絶滅危惧種に指定されている。Spheniscidae科。
Common Myna
ハッカチョウ（Acridotheres tristis）— 南アジア原産で世界各地に移入された強い適応力をもつムクドリ科の鳥。黄色い嘴と目の周りの黄色い皮膚が特徴。