Taiga Bean Goose vs Mandarin Duck
Anser fabalis 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | Taiga Bean Goose | Mandarin Duck |
|---|---|---|
| 学名 | Anser fabalis | 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 | 89.7 cm (35.3 in) | 70.0 cm (27.6 in) |
| 体重 | 3115.0 g (109.88 oz) | 570.0 g (20.11 oz) |
| 食性 | -- | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 3-8 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Taiga Bean Goose
Breeds in taiga forest, boggy clearings, and river valleys across Scandinavia and northern Russia. Winters on agricultural fields, pastures, and river valleys in western and central Europe, particularly Belgium and the Netherlands.
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
Taiga Bean Goose
A low, nasal 'ung-unk' or 'ow' call — less nasal than Grey-lag. Flocks give continuous calling. The call distinction from Tundra Bean Goose is subtle but detectable.
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
Taiga Bean Goose
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
Taiga Bean Goose
Mandarin Duck
How to Tell Them Apart
Taiga Bean Goose
Dark brown head and neck; back dark brown with pale feather edges giving scalloped appearance. Underparts pale gray-brown. Bill orange-yellow with black base and tip. Orange legs. Darker than Pink-footed …
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
Taiga Bean Goose
ビーンガンはユーラシア北部に繁殖し、温帯地方で越冬するガンです。オレンジ色の嘴と脚が特徴的です。日本では冬鳥として北日本に飛来します。農地、草地、湿地に生息し、農作物の根や葉、草などを採食します。
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。