Egyptian Goose vs Black-headed Duck
Alopochen aegyptiaca 비교 대상 Heteronetta atricapilla
Side-by-Side Comparison
| 속성 | Egyptian Goose | Black-headed Duck |
|---|---|---|
| 학명 | Alopochen aegyptiaca | Heteronetta atricapilla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 71.2 cm (28.0 in) | 34.7 cm (13.7 in) |
| 체중 | 2021.3333333333333 g (71.30 oz) | 528.5 g (18.64 oz) |
| 식성 | Feeds on seeds, grasses, and invertebrates; forages on land and water; diet shifts between terrestrial … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| 산란 수 | 5-14 | 2 |
| Population Trend | — | — |
Habitat Comparison
Egyptian Goose
Native to sub-Saharan Africa and the Nile Valley; also introduced in western Europe. Freshwater margins, agricultural fields, parks, and golf courses. Highly adaptable; common near human habitation.
Song & Call Comparison
Egyptian Goose
A harsh, honking 'haw-haw' from males; females give a reedy, nasal 'kink-kink'. Very vocal and aggressive; pairs call repeatedly near nest sites in African wetlands.
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
Egyptian Goose
Formerly bred in eastern North America; range collapsed in the 19th century. Extinct by 1914; last wild individual shot in 1900.
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
Egyptian Goose
Black-headed Duck
How to Tell Them Apart
Egyptian Goose
Pale grayish-brown with chestnut-brown patch around eye and dark chestnut patch on breast center. Wings show large white patch and black-and-green speculum in flight. Pinkish bill and legs. 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
Egyptian Goose
갈색-흰색 몸통, 어두운 눈 반점, 밤색 패치가 있는 크고 눈에 띄는 조갑류 거위 같은 새. 눈에 띄는 흰 날개 무늬가 있다. 나일 강에서 남아프리카까지 사하라 이남 아프리카와 이집트에 서식한다. 목초지와 농경지를 선호한다.
Black-headed Duck
검은머리오리(Heteronetta atricapilla)는 남아메리카산 약 530g의 소형 잠수 오리로, 오리과의 유일한 탁란성 종이다. 다른 수조류 둥지에 알을 낳는다.