Cackling Goose vs Black-headed Duck
Branta hutchinsii 비교 대상 Heteronetta atricapilla
Side-by-Side Comparison
| 속성 | Cackling Goose | Black-headed Duck |
|---|---|---|
| 학명 | Branta hutchinsii | Heteronetta atricapilla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 79.3 cm (31.2 in) | 34.7 cm (13.7 in) |
| 체중 | 1801.8 g (63.56 oz) | 528.5 g (18.64 oz) |
| 식성 | Grazes aquatic vegetation and sedges in Northern Hemisphere wetlands; migratory; winter diet of eelgrass and … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| 산란 수 | 3-6 | 2 |
| Population Trend | — | — |
Habitat Comparison
Cackling Goose
Breeds on low-lying Arctic and subarctic tundra. Winters on grasslands, agricultural fields, and coastal marshes in the central and western United States. Often found in mixed flocks with Canada Geese.
Song & Call Comparison
Cackling Goose
A high-pitched, yelping 'luk-luk' or 'likl-likl' — higher-pitched and smaller-sounding than Canada Goose. Given rapidly in flock flight. Useful identification feature.
Black-headed Duck
Male gives a soft, raspy peeping note; female produces a muted quack. An obligate brood parasite with reduced vocalizations; subdued calls suit its secretive lifestyle among Argentine reeds.
Geographic Range & Migration
Cackling Goose
Breeds in Arctic Canada; winters on the Atlantic coast from New England to Florida, occasionally to the Bahamas and Gulf Coast.
Black-headed Duck
Resident in southern South America from southern Brazil and Bolivia south to Argentina and Chile. Found on lakes and marshes in open lowlands.
보전 상태
Cackling Goose
Black-headed Duck
How to Tell Them Apart
Cackling Goose
Resembles miniature Canada Goose; black head and neck with white chin strap. Brown-gray back; pale underparts. White undertail. Short neck and stubby bill distinguish from Canada Goose. Sexes similar.
Black-headed Duck
Male has distinctive jet-black head and neck, warm chestnut-brown back, and pale buff underparts; blue-grey bill with red base. Female is streaked brown above with pale supercilium and whitish underparts.
About These Birds
Cackling Goose
짧은 부리, 둥근 머리, 더 짧은 목을 가진 캐나다기러기의 소형 버전입니다. 오랫동안 아종으로 취급되었으나 현재 네 개의 아종이 있는 별도 종으로 인정됩니다. 북극 번식지에서 미국 중부 월동지로 이동합니다. 사회성이 강해 겨울에 캐나다기러기와 섞입니다.
Black-headed Duck
검은머리오리(Heteronetta atricapilla)는 남아메리카산 약 530g의 소형 잠수 오리로, 오리과의 유일한 탁란성 종이다. 다른 수조류 둥지에 알을 낳는다.