Goosander vs African Pygmy-goose
Mergus merganser مقارنةً بـ Nettapus auritus
Side-by-Side Comparison
| السمة | Goosander | African Pygmy-goose |
|---|---|---|
| الاسم العلمي | Mergus merganser | Nettapus auritus |
| الرتبة | Anseriformes | Anseriformes |
| الفصيلة | Anatidae | Anatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 54,2 cm (21.3 in) | 29,9 cm (11.8 in) |
| الوزن | 1488,0 g (52.49 oz) | 272,5 g (9.61 oz) |
| النظام الغذائي | Dives for fish, especially salmon and trout, in rivers and lakes. Also takes frogs, crustaceans, … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| عدد البيض في الوضع | 4-22 | 6-12 |
| 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.
Song & Call Comparison
Goosander
Male gives a harsh, crow-like karrr call; female produces a guttural, grunting series. Both sexes produce loud, nasal calls; the male's harsh croaking is a distinctive winter river sound.
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
Goosander
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large rivers south to the Mediterranean and South Asia.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
حالة الحفاظ
Goosander
African Pygmy-goose
How to Tell Them Apart
Goosander
Male has dark green iridescent head, salmon-pink suffused white body, and black back; red serrated bill. Female has rufous-brown head with neat white chin patch, grey body, and pinkish-buff breast.
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
Goosander
The largest merganser (~1.5 kg) in family Anatidae, males with glossy green heads and salmon-flushed white bodies. Breeds along rivers and lakes in northern Europe, Asia, and North America; winters on larger rivers and reservoirs. A pursuit-diver specializing in fish, using a serrated bill for grip. Least Concern with stable Holarctic distribution.
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.