Bufflehead vs Mandarin Duck
Bucephala albeola 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | Bufflehead | Mandarin Duck |
|---|---|---|
| 学名 | Bucephala albeola | 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 | 32.2 cm (12.7 in) | 70.0 cm (27.6 in) |
| 体重 | 400.5 g (14.13 oz) | 570.0 g (20.11 oz) |
| 食性 | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 5-14 | 7-14 |
| 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.
Song & Call Comparison
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
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
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
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
Bufflehead
Mandarin Duck
How to Tell Them Apart
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
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
Bufflehead
北米最小の潜水ガモ（約400g）、アナチダエ科、雄は大きな白い頭部斑を持つ虹彩色の紫緑の頭部。池や湖の近くの林に繁殖し、キツツキの穴に巣を作る；沿岸の湾と内陸の水域で越冬する。水生無脊椎動物と小魚を食べる。個体数が安定した軽度懸念種。
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。