African Penguin vs Japanese White-eye
Spheniscus demersus 比較対象 Zosterops japonicus
Side-by-Side Comparison
| 属性 | African Penguin | Japanese White-eye |
|---|---|---|
| 学名 | Spheniscus demersus | Zosterops japonicus |
| 目 | Sphenisciformes | Passeriformes |
| 科 | Spheniscidae | Zosteropidae |
| 保全状況 | Endangered | Least Concern |
| 体長 | 60.0 cm (23.6 in) | 11.5 cm (4.5 in) |
| 翼開長 | 42.0 cm (16.5 in) | 17.0 cm (6.7 in) |
| 体重 | 3100.0 g (109.35 oz) | 11.0 g (0.39 oz) |
| 食性 | Small schooling fish, especially sardines and anchovies. Forages within 40 km of the colony, diving … | Insects, nectar, and fruit. Active gleaner that flits through foliage and visits flowers. Important pollinator … |
| 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.
Japanese White-eye
Broadleaf evergreen forests, gardens, parks, and suburban areas. Highly adaptable and common in East Asian gardens.
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.
Japanese White-eye
Sweet, high-pitched 'tsee-tsee-tsee' whistle and soft melodic warbling. Flocks produce a continuous tinkling chorus. Alarm is a sharper 'tset'. Song is gentle and rhythmic.
Geographic Range & Migration
African Penguin
Coastal southwestern Africa from Namibia to Port Elizabeth, South Africa. The only penguin species breeding in Africa.
Japanese White-eye
East Asia including Japan, China, Korea, Taiwan, Vietnam, and the Philippines. Introduced to Hawaii and other Pacific islands.
保全状況
African Penguin
Japanese White-eye
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
Japanese White-eye
Olive-green upperparts with a bright white eye-ring. Yellow throat and undertail coverts. Greyish-white belly.
Thin, pointed, slightly decurved dark 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。
Japanese White-eye
The Japanese white-eye is a familiar garden bird across East Asia, beloved in Japan where it is called mejiro. These sociable birds form flocks outside the breeding season and are important pollinators of plum and cherry blossoms. Unfortunately, introduced populations in Hawaii have become invasive, competing with native honeycreepers.