Greater White-fronted Goose vs Maned Duck
Anser albifrons 比較対象 Chenonetta jubata
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Maned Duck |
|---|---|---|
| 学名 | Anser albifrons | Chenonetta jubata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 81.6 cm (32.1 in) | 51.8 cm (20.4 in) |
| 体重 | 2471.0 g (87.16 oz) | 825.25 g (29.11 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| 一腹卵数 | 3-9 | 8-11 |
| Population Trend | — | — |
Habitat Comparison
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Maned Duck
Open woodland, grassland, parks, golf courses, and farmland near water across most of Australia. Nests in tree hollows up to 30m high. Grazes terrestrially. Highly adaptable to modified and urban environments.
Song & Call Comparison
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Maned Duck
Male utters soft, goose-like honking notes; female gives a harsh, repeated quacking rattle. Alarm call is a loud, abrupt nasal honk carrying over open water.
Geographic Range & Migration
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
Maned Duck
保全状況
Greater White-fronted Goose
Maned Duck
How to Tell Them Apart
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
Maned Duck
Males have brownish head with short dark mane; gray body with fine vermiculations and chestnut breast spots. Females brown with white supercilium and white chin. Both show white speculum in …
About These Birds
Greater White-fronted Goose
北極圏で繁殖し、温帯で越冬する大型のガン（体長64〜81cm）。成鳥は白い額と黒い腹部の横縞が特徴。Anser albifrons（マガン）は東アジア、ヨーロッパ、北米の広大な農地や湿地で越冬する。日本では宮城県伊豆沼などが重要な越冬地で、数万羽が集まる壮観な光景が見られる。Anatidae科。
Maned Duck
オーストラリアンウッドダックはオーストラリア全土に分布するカモです。雄は暗褐色の頭部と細かい模様の羽毛が特徴的です。草地や農地に隣接した湿地、池、川に生息します。草、種子、昆虫を採食します。木の洞に営巣します。