African Pygmy-goose vs Pink-headed Duck
Nettapus auritus 比較対象 Rhodonessa caryophyllacea
Side-by-Side Comparison
| 属性 | African Pygmy-goose | Pink-headed Duck |
|---|---|---|
| 学名 | Nettapus auritus | Rhodonessa caryophyllacea |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Critically Endangered |
| 体長 | — | — |
| 翼開長 | 29.9 cm (11.8 in) | 50.2 cm (19.8 in) |
| 体重 | 272.5 g (9.61 oz) | 963.8 g (34.00 oz) |
| 食性 | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … | Probably extinct; fed on fish, molluscs, and aquatic invertebrates in Indian subcontinent wetlands; diet recorded … |
| 一腹卵数 | 6-12 | 5-10 |
| Population Trend | — | — |
Habitat Comparison
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.
Pink-headed Duck
Historically inhabited secluded freshwater pools, lakes, and marshes in tall grass and forest in the Ganges and Brahmaputra plains of India, Nepal, and Myanmar. Now possibly extinct or extremely rare.
Song & Call Comparison
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.
Pink-headed Duck
Critically Endangered; likely gives a soft, resonant quacking note judging from close relatives. The Pink-headed Duck may have produced a distinctive, mellow whistle unlike other pochards.
Geographic Range & Migration
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Pink-headed Duck
Breeds in the northern prairies of Canada and US; winters in the Gulf Coast and along the Atlantic coast south to Florida.
保全状況
African Pygmy-goose
Pink-headed Duck
How to Tell Them Apart
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.
Pink-headed Duck
Unmistakable; males have strikingly bright pink head and neck contrasting with dark chocolate-brown body and wings. Pink bill. Females have paler pink head. Possibly extinct; last confirmed 1949. Critically endangered …
About These Birds
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。
Pink-headed Duck
ピンクヘッドダックは南アジアに生息していた潜水性カモですが、おそらく絶滅したと考えられています。雄は特徴的なピンク色の頭部を持っていました。インドのガンジス平原の湿地や沼地に生息していましたが、狩猟と生息地の喪失により20世紀初頭に絶滅したとみられています。