Sunda Teal vs African Black Duck
Anas gibberifrons เปรียบเทียบกับ Anas sparsa
Side-by-Side Comparison
| คุณสมบัติ | Sunda Teal | African Black Duck |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Anas gibberifrons | Anas sparsa |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Near Threatened | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 38.7 cm (15.2 in) | 49.5 cm (19.5 in) |
| น้ำหนัก | 409.25 g (14.44 oz) | 996.8333333333334 g (35.16 oz) |
| อาหาร | Dives for aquatic invertebrates, molluscs, and plant matter; diet varies with habitat between freshwater and … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … |
| จำนวนไข่ | 7-8 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Sunda Teal
Freshwater lakes, marshes, rice paddies, and coastal wetlands on Indonesian islands including Java, Sulawesi, and the Lesser Sundas. Non-migratory; resident on oceanic islands.
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
Song & Call Comparison
Sunda Teal
Female gives a nasal, descending quacking series; male utters a soft whistle. Calls resemble Grey Teal; heard across Indonesian and Philippine freshwater marshes and tidal ponds.
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Geographic Range & Migration
Sunda Teal
Breeds in the prairie pothole region and northern boreal zone; winters along the Gulf and Atlantic coasts of North America.
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
สถานะการอนุรักษ์
Sunda Teal
African Black Duck
How to Tell Them Apart
Sunda Teal
Dark brown body with finely scalloped pale feather edges. Crown dark; face paler buff-brown. Bill gray. Speculum iridescent green with white borders. Flat forehead profile. Sexes similar. Sunda Islands wetland …
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
About These Birds
Sunda Teal
A medium-sized brown teal with pale spotting, green speculum, and a high domed forehead giving the head a distinctive shape. Found on Indonesian islands from Java and Sulawesi to Lesser Sundas. Non-migratory island species. Threatened by hunting and wetland drainage.
African Black Duck
A medium-sized dark brown duck with white spots on the back, a dark bill, and orange legs. Found along fast-flowing rocky rivers and streams in Africa. Territorial and monogamous; pairs defend stretches of river. Related to Pacific Black Duck.