African Pygmy-goose vs Paradise Shelduck
Nettapus auritus 对比 Tadorna variegata
Side-by-Side Comparison
| 属性 | African Pygmy-goose | Paradise Shelduck |
|---|---|---|
| 学名 | Nettapus auritus | Tadorna variegata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 29.9 cm (11.8 in) | 70.2 cm (27.6 in) |
| 体重 | 272.5 g (9.61 oz) | 1569.5 g (55.36 oz) |
| 食性 | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … | Eats seeds, grasses, and aquatic invertebrates; grazes near water; dabbles in shallows; diet varies with … |
| 产卵数 | 6-12 | 5-15 |
| 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.
Paradise Shelduck
Open farmland, grassland, lake shores, riverbeds, and wetlands throughout both main islands of New Zealand. Nests in caves, burrows, hollow trees, and dense vegetation. Highly territorial in the breeding season.
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.
Paradise Shelduck
Male gives a high-pitched whistle; female gives a loud, harsh cackling call 'rak-rak-rak'. New Zealand's only endemic shelduck; calls echoing in open farmland are distinctive.
Geographic Range & Migration
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Paradise Shelduck
Breeds in Eurasia from the UK to Siberia; winters across sub-Saharan Africa and the Indian subcontinent.
保护状况
African Pygmy-goose
Paradise Shelduck
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.
Paradise Shelduck
Extreme dimorphism. Males have black head with green gloss and black-and-chestnut body. Females have pure white head and neck contrasting with rich chestnut-rufous body. Both show white wing patches. New …
About These Birds
African Pygmy-goose
A tiny jewel-like duck—one of Africa's smallest waterfowl. Males have iridescent green-and-white plumage, an orange bill, and a dark green cap; females are mottled brown. Found on lily-covered lakes in sub-Saharan Africa. Perches on water lily pads and feeds on their seeds and flowers.
Paradise Shelduck
新西兰麻鸭（皮阿伊鸭）是新西兰特有的大型鸭子，以其两性明显的颜色差异著称：雄鸟头颈翠绿色，体羽棕栗色；雌鸟头颈黄白色，体羽棕褐色。以毛利语名称Pūtangitangi亦为人所知。广泛分布于新西兰各地，偏好草地和湿地环境。是受新西兰法律保护的物种。