White-winged Scoter
Melanitta deglandi
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<birdfyi-bird slug="melanitta-deglandi"></birdfyi-bird>เกี่ยวกับเรา
A large diving duck (~1.6 kg) in family Anatidae, distinguished by white secondaries visible in flight. Breeds on freshwater lakes in boreal North America; winters along Pacific and Atlantic coasts. Dives for mussels, clams, and aquatic insects. Least Concern; North American populations remain broadly stable despite some local declines.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| กว้างปีก | 54.0 cm | 21.3 in |
| น้ำหนัก | 1647.1666666666667 g | 58.10 oz |
การยืนยันชนิดพันธุ์
ขนนก
Male is black with conspicuous white secondaries and a white comma-shaped mark below eye; orange-yellow bill with black basal knob. Female dark brownish-black with two pale facial patches and white wing patch.
Habitat & Range
อาณาเขตทางภูมิศาสตร์
Breeds in boreal forest and tundra of interior North America. Winters along Pacific and Atlantic coasts south to California and the Gulf states.
Diet & Feeding
Dives for molluscs, crustaceans, and small fish in coastal and inland waters. Favours mussels and clams; forages in flocks.
สถานะการอนุรักษ์
พฤติกรรมและการผสมพันธุ์
การทำรัง
Nest type: SC. Incubation: 25-31 days. Fledging: 50-55 days.
จำนวนไข่
6-16
เสียง
เสียงร้อง
Male produces a soft, whistled note; female gives a harsh, grating call. Similar to Velvet Scoter; the female's rasping call carries across North Pacific bays and coastal inlets.
อนุกรมวิทยา
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| อันดับ | Anseriformes (Waterfowl) |
| วงศ์ตระกูล | Anatidae (Ducks, Geese & Swans) |
| Genus | Melanitta |
| ชนิดพันธุ์ | Melanitta deglandi |
Distribution
White-winged Scoter has been recorded in 4 countries.
{# Distribution Map — simplified SVG world map with highlighted countries. Expects `country_codes` variable: list of ISO alpha-2 codes (e.g. ["US", "CA", "MX"]). Uses Alpine.js to toggle classes on country paths. #}countries highlighted
External Databases
คำถามที่พบบ่อย
What does the White-winged Scoter eat?
Where does the White-winged Scoter live?
Is the White-winged Scoter endangered?
How does the White-winged Scoter nest?
What does the White-winged Scoter sound like?
How big is the White-winged Scoter?
What order and family does the White-winged Scoter belong to?
Similar Birds
Other species in the Anatidae family