Mandarin Duck vs Blue-billed Teal
Aix galericulata 比較対象 Spatula hottentota
Side-by-Side Comparison
| 属性 | Mandarin Duck | Blue-billed Teal |
|---|---|---|
| 学名 | Aix galericulata | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 44.0 cm (17.3 in) | — |
| 翼開長 | 70.0 cm (27.6 in) | 29.4 cm (11.6 in) |
| 体重 | 570.0 g (20.11 oz) | 269.2 g (9.50 oz) |
| 食性 | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 一腹卵数 | 7-14 | 5-12 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
Song & Call Comparison
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
Geographic Range & Migration
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
保全状況
Mandarin Duck
Blue-billed Teal
How to Tell Them Apart
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish in females
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
About These Birds
Mandarin Duck
オシドリ。東アジア原産の美しいカモ。雄は鮮やかなオレンジ色の「帆羽」と複雑な羽毛模様が特徴的。体長41〜49cm。森林の池や川に生息し、樹洞に巣を作る。ドングリや水草を食べる。低危険種。
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.