Pacific Black Duck vs Mallard
Anas superciliosa 比較対象 Anas platyrhynchos
Side-by-Side Comparison
| 属性 | Pacific Black Duck | Mallard |
|---|---|---|
| 学名 | Anas superciliosa | Anas platyrhynchos |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 58.0 cm (22.8 in) |
| 翼開長 | 50.2 cm (19.8 in) | 90.0 cm (35.4 in) |
| 体重 | 1000.5 g (35.29 oz) | 1100.0 g (38.80 oz) |
| 食性 | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| 一腹卵数 | 3-15 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Pacific Black Duck
Freshwater and brackish wetlands across Australasia and the Pacific Islands, from freshwater lakes and rivers to coastal estuaries, mangroves, and irrigated agricultural areas. Highly adaptable to human-modified landscapes.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Pacific Black Duck
Female gives a loud, emphatic quacking series; male utters a soft quip note. Common call is a loud, repeated quack; alarm is an insistent, rattling quacking burst.
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Geographic Range & Migration
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
保全状況
Pacific Black Duck
Mallard
How to Tell Them Apart
Pacific Black Duck
Brownish-black body with pale buff feather edges giving scaly appearance. Bold pale buff supercilium and dark eye-stripe and crown stripe on paler face. Iridescent green speculum. Gray bill; orange legs. …
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
About These Birds
Pacific Black Duck
パシフィックブラックダックはオーストラリア、ニュージーランド、太平洋島嶼部に広く分布するカモです。全身が褐色で、目の上に特徴的な白い眉斑があります。淡水の湿地、湖、川、河口に生息します。農業用水路にも適応しており、都市部の公園でも見られます。
Mallard
世界で最も一般的なカモ。雄は光沢のある緑色の頭、白い首輪、栗色の胸が特徴。体長50〜65cm。ほぼ世界中の湖、川、池、湿地に生息。雑食性で植物や無脊椎動物を食べる。多くの家禽カモの祖先。低危険種。