Northern Pintail vs Greater White-fronted Goose
Anas acuta 比較対象 Anser albifrons
Side-by-Side Comparison
| 属性 | Northern Pintail | Greater White-fronted Goose |
|---|---|---|
| 学名 | Anas acuta | Anser albifrons |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 51.3 cm (20.2 in) | 81.6 cm (32.1 in) |
| 体重 | 912.75 g (32.20 oz) | 2471.0 g (87.16 oz) |
| 食性 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … |
| 一腹卵数 | 3-12 | 3-9 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
Northern Pintail only
None
Greater White-fronted Goose only
None
Northern Pintail
Breeds on shallow prairie wetlands, tundra ponds, and arctic meadows. Winters on coastal estuaries, lagoons, rice paddies, and agricultural fields across Europe, Asia, Africa, and North America. Highly migratory.
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.
Song & Call Comparison
Northern Pintail
Male produces a low, mellow whistle; female gives a hoarse, nasal quack. The male's soft, flute-like call is one of the most distinctive sounds of northern wetlands in spring.
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.
Geographic Range & Migration
Northern Pintail
Breeds in Arctic Canada, Alaska, and Greenland; winters along the coasts of the North Atlantic from Labrador to West Africa.
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.
保全状況
Northern Pintail
Greater White-fronted Goose
How to Tell Them Apart
Northern Pintail
Breeding males have chocolate-brown head; white neck stripe extending to breast; gray flanks with long pointed central tail feathers. Females mottled brown with pointed tail and gray bill. Elegant and …
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 …
About These Birds
Northern Pintail
北半球全域で繁殖し、南方で越冬する優雅なカモ（体長50〜76cm）。雄は茶色の頭と長い針状の尾が特徴的。Anas acuta（オナガガモ）は北極圏から温帯まで幅広い湿地で繁殖し、アジア、ヨーロッパ、北米で越冬する長距離渡り鳥。日本の冬の湖沼や河川に多く飛来する。Anatidae科。
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。