Egyptian Goose vs American Black Duck
Alopochen aegyptiaca เปรียบเทียบกับ Anas rubripes
Side-by-Side Comparison
| คุณสมบัติ | Egyptian Goose | American Black Duck |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Alopochen aegyptiaca | Anas rubripes |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 71.2 cm (28.0 in) | 53.4 cm (21.0 in) |
| น้ำหนัก | 2021.3333333333333 g (71.30 oz) | 1211.25 g (42.73 oz) |
| อาหาร | Feeds on seeds, grasses, and invertebrates; forages on land and water; diet shifts between terrestrial … | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … |
| จำนวนไข่ | 5-14 | 1-17 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Egyptian Goose only
American Black Duck only
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.
American Black Duck
Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.
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.
American Black Duck
Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.
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.
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
สถานะการอนุรักษ์
Egyptian Goose
American Black 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.
American Black Duck
Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …
About These Birds
Egyptian Goose
A large conspicuous sheldgoose-like bird with brown-and-white body, dark eye patches, a chestnut patch on the chest, and pink bill and legs. Native to Africa and the Nile Valley; widely introduced to Europe. Aggressive and territorial; found in urban parks. Feeds by grazing on grass.
American Black Duck
A large dark brown dabbling duck closely resembling a very dark female Mallard, with purple speculum, yellowish-olive bill in males, and orange legs. Common in eastern North America. Hybridizes freely with Mallard; pure populations declining in the interior.