Greater White-fronted Goose vs Labrador Duck
Anser albifrons 对比 Camptorhynchus labradorius
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Labrador Duck |
|---|---|---|
| 学名 | Anser albifrons | Camptorhynchus labradorius |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Extinct |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | — |
| 体重 | 2471.0 g (87.16 oz) | 673.5 g (23.76 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Extinct; soft spatulate bill suggests feeding on soft-shelled benthic molluscs and crustaceans in shallow coastal … |
| 产卵数 | 3-9 | -- |
| 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.
Labrador Duck
Historically inhabited sandy coastal bays, estuaries, and mussel beds from Labrador to the mid-Atlantic United States. Extinct since 1878. Nesting grounds never confirmed; likely bred in Labrador.
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.
Labrador Duck
Extinct (EX). No recordings exist. This North American scoter relative likely gave a quiet, grunting call during display based on the bill morphology suggesting possible unusual vocalizations.
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.
Labrador Duck
Formerly along the eastern coast of North America from Labrador to Chesapeake Bay. Extinct by 1878; last specimen shot in New York.
保护状况
Greater White-fronted Goose
Labrador 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 …
Labrador Duck
Extinct; males had white head and breast with black back, wings and belly; distinctive white wing patch. Broad bill with comb-like lamellae. Females brown. Last specimen 1875; first North American …
About These Birds
Greater White-fronted Goose
A medium-large goose with a white forehead patch, orange bill, grey-brown plumage, and variable black barring on the belly. Widespread and numerous; one of the most abundant geese in the world. Breeds across the high Arctic; winters in a wide range of temperate wetland and agricultural habitats.
Labrador Duck
拉布拉多鸭已于19世纪后期灭绝，是北美历史上最先消失的鸟类之一。曾繁殖于加拿大东部，越冬于美国大西洋沿岸。雄鸟黑白相间，外形独特；雌鸟褐色。灭绝原因尚不完全清楚，可能与过度猎捕、沿海湿地破坏及食物减少有关。最后确认的标本记录于1878年。