Sunda Teal vs Blue-billed Teal
Anas gibberifrons 比較対象 Spatula hottentota
Side-by-Side Comparison
| 属性 | Sunda Teal | Blue-billed Teal |
|---|---|---|
| 学名 | Anas gibberifrons | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 38.7 cm (15.2 in) | 29.4 cm (11.6 in) |
| 体重 | 409.25 g (14.44 oz) | 269.2 g (9.50 oz) |
| 食性 | Dives for aquatic invertebrates, molluscs, and plant matter; diet varies with habitat between freshwater and … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 一腹卵数 | 7-8 | 5-12 |
| 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.
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
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.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
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.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
保全状況
Sunda Teal
Blue-billed Teal
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 …
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
About These Birds
Sunda Teal
スンダティールはインドネシアからオーストラリアにかけての東南アジア地域に分布するカモです。灰褐色の羽毛と緑色の翼鏡が特徴です。淡水の湿地、池、川、マングローブ林の縁などに生息します。水草の種子や小型無脊椎動物を食べます。
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.