Common Teal vs Mandarin Duck
Anas crecca 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | Common Teal | Mandarin Duck |
|---|---|---|
| 学名 | Anas crecca | Aix galericulata |
| 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 | 36.1 cm (14.2 in) | 70.0 cm (27.6 in) |
| 体重 | 325.0 g (11.46 oz) | 570.0 g (20.11 oz) |
| 食性 | Dives for molluscs, crustaceans, and aquatic invertebrates; diet dominated by hard-shelled prey in coastal and … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 8-11 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Teal
Breeds on boreal and subarctic freshwater marshes, lakes, and bogs across Eurasia. Winters on freshwater lakes, estuaries, rice paddies, and coastal marshes from northwest Europe and Africa east to Southeast Asia.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Song & Call Comparison
Common Teal
Male gives a ringing, bell-like krick call; female produces a soft, descending quack. The male's crystalline high note is a hallmark sound of Eurasian wetlands; flocks produce a musical tinkling …
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.
Geographic Range & Migration
Common Teal
Breeds in sub-Arctic and boreal Canada and Alaska; winters along the Pacific coast from Alaska to southern California.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保全状況
Common Teal
Mandarin Duck
How to Tell Them Apart
Common Teal
Males have chestnut head with iridescent green eye patch bordered cream. Gray body with horizontal white shoulder stripe. Cream and black undertail. Females mottled brown. Small and fast-flying. Iridescent green …
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
About These Birds
Common Teal
北半球全域で繁殖する最小のカモの一つ（体長34〜38cm）。雄は栗色の頭部に緑の斑が美しく、雌は茶褐色のまだら模様。Anas crecca（コガモ）は浅い湿地や水田を好み、日本では冬季に全国の水辺で普通に見られる渡り鳥。素早い飛翔と急旋回が特徴で、狩猟対象としても知られる。Anatidae科。
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。