Yellow-billed Pintail vs American Black Duck
Anas georgica مقارنةً بـ Anas rubripes
Side-by-Side Comparison
| السمة | Yellow-billed Pintail | American Black Duck |
|---|---|---|
| الاسم العلمي | Anas georgica | Anas rubripes |
| الرتبة | Anseriformes | Anseriformes |
| الفصيلة | Anatidae | Anatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 41,1 cm (16.2 in) | 53,4 cm (21.0 in) |
| الوزن | 626,6666666666666 g (22.11 oz) | 1211,25 g (42.73 oz) |
| النظام الغذائي | Eats aquatic invertebrates, molluscs, and small fish; dives in shallow water; diet varies between freshwater … | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … |
| عدد البيض في الوضع | 3-12 | 1-17 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Yellow-billed Pintail only
American Black Duck only
Yellow-billed Pintail
Freshwater and brackish lakes, rivers, marshes, and bogs from the Andes to Patagonia in South America, plus the Falkland Islands and South Georgia. Ranges from sea level to high altitudes. Partially migratory.
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
Yellow-billed Pintail
Female gives a nasal, descending quacking series; male utters a short, whistled note. Calls are softer than the Northern Pintail; heard across South American lakes and pampas marshes.
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
Yellow-billed Pintail
Breeds across the northern Palearctic; winters in Europe, North Africa, the Middle East, and South Asia.
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
حالة الحفاظ
Yellow-billed Pintail
American Black Duck
How to Tell Them Apart
Yellow-billed Pintail
Brown plumage with pale buff feather edges creating scalloped pattern. Yellow bill with black ridge and tip. Pointed tail; long neck. Iridescent speculum with buff front border. Sexes similar. Andean …
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
Yellow-billed Pintail
A slender long-tailed duck with pale buff-brown body, dark brown cap, yellow-sided bill, and a distinctive long pointed tail. Found from the South American subtropics to the Falkland Islands and South Georgia. Gregarious; forms large post-breeding flocks.
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.