Pink-footed Goose vs African Pygmy-goose
Anser brachyrhynchus 比較対象 Nettapus auritus
Side-by-Side Comparison
| 属性 | Pink-footed Goose | African Pygmy-goose |
|---|---|---|
| 学名 | Anser brachyrhynchus | Nettapus auritus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 86.4 cm (34.0 in) | 29.9 cm (11.8 in) |
| 体重 | 2590.0 g (91.36 oz) | 272.5 g (9.61 oz) |
| 食性 | Grazes grasses and aquatic plants near rivers; takes invertebrates in breeding season; nomadic in response … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| 一腹卵数 | 2-8 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Pink-footed Goose
Breeds on tundra and cliff ledges in Greenland, Iceland, and Svalbard. Winters on agricultural fields, saltmarshes, and estuaries in Scotland, England, Netherlands, and Denmark.
African Pygmy-goose
Freshwater lakes, ponds, and rivers with floating water lilies and other aquatic vegetation across sub-Saharan Africa from Senegal to Tanzania. Nests in tree cavities near water. Highly dependent on water lily vegetation.
Song & Call Comparison
Pink-footed Goose
A musical, high-pitched 'wink-wink' — noticeably higher and more musical than Greylag or Bean Goose. The 'wink' call is a reliable identification feature in winter flocks.
African Pygmy-goose
Male produces a soft, wheezy whistle; female gives a quiet, duck-like quack. Pairs exchange rapid twittering notes during courtship on lily-covered African pools.
Geographic Range & Migration
Pink-footed Goose
Breeds on Arctic and sub-Arctic tundra ponds across North America; winters on both US coasts and Gulf Coast estuaries.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
保全状況
Pink-footed Goose
African Pygmy-goose
How to Tell Them Apart
Pink-footed Goose
Dark brown head and neck. Back grayish-brown; underparts pale gray. Diagnostic pink feet and pink-banded dark bill. Pale blue-gray forewing in flight. Compact and round-headed. Sexes similar.
African Pygmy-goose
Tiny. Males have glossy dark green head with orange facial patch and ear spot; chestnut-orange flanks; white underparts; black and green back. Females duller with dark eye-stripe. Small yellow-green bill.
About These Birds
Pink-footed Goose
ピンクフットグースはグリーンランドとスバールバル諸島に繁殖し、ヨーロッパ北西部で越冬するガンです。ピンク色の脚と短い嘴が特徴的です。農地、湿地、草地に生息し、農作物の落穂や草を採食します。冬季には大群で農地に降りることで農家と軋轢を生じます。
African Pygmy-goose
アフリカンピグミーグースはアフリカ南部と東部に分布する小型の木巣性カモです。雄の緑と栗色の美しい羽毛と小さなサイズが特徴的です。水草が豊富な湖や沼地に生息し、蓮や水草の種子を主食とします。木の洞に営巣します。