Lesser Scaup

关于

A medium-sized diving duck nearly identical to Greater Scaup but with a peaked purple-glossed head, narrower bill nail, and smaller white wing stripe. The most abundant diving duck in North America. Breeds in boreal Canada and Alaska; winters across the southern United States and beyond.

Physical Description

Measurement	Value	Imperial
翼展	39.6 cm	15.6 in
体重	853.75 g	30.12 oz

识别

羽毛

Males have peaked purple-glossed black head; white flanks; black breast and undertail; gray back. Yellow eye. Smaller than Greater Scaup with peaked crown. Females dark brown with white face patch. White wing stripe shorter.

Habitat & Range

Breeds on boreal lakes, ponds, and wetlands in Canada and Alaska. Winters on large lakes, reservoirs, coastal bays, and freshwater across the southern United States, Mexico, and Central America. Often in large rafts.

🌿 Wetland 🏖️ Coastal

分布范围

Breeds in the forested interior of central Canada; winters on large lakes and rivers of the southeastern United States.

Diet & Feeding

Dives for molluscs, crustaceans, and aquatic invertebrates in coastal habitats; hard-shelled benthic prey dominates diet.

保护状况

Least Concern

IUCN Red List

行为与繁殖

筑巢

Nest type: CP. Incubation: 21-22 days. Fledging: 45-50 days.

产卵数

6-14

声音

鸣唱

Male produces a soft, low purring call; female gives a harsh, nasal scaup sound. Voice nearly identical to Greater Scaup but slightly higher; flocks create a burbling, nasal chatter.

分类学

Kingdom	Animalia
Phylum	Chordata
Class	Aves
目	Anseriformes (Waterfowl)
科	Anatidae (Ducks, Geese & Swans)
Genus	Aythya
物种	Aythya affinis

Distribution

Lesser Scaup has been recorded in 9 countries.

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出现 Not recorded

countries highlighted

🇹🇼 Taiwan 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States 🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela

External Databases

常见问题

What does the Lesser Scaup eat?

Dives for molluscs, crustaceans, and aquatic invertebrates in coastal habitats; hard-shelled benthic prey dominates diet.

Where does the Lesser Scaup live?

Breeds on boreal lakes, ponds, and wetlands in Canada and Alaska. Winters on large lakes, reservoirs, coastal bays, and freshwater across the southern United States, Mexico, and Central America. Often in large rafts.

Is the Lesser Scaup endangered?

The Lesser Scaup has a conservation status of Least Concern.

How does the Lesser Scaup nest?

Nest type: CP. Incubation: 21-22 days. Fledging: 45-50 days.

What does the Lesser Scaup sound like?

Male produces a soft, low purring call; female gives a harsh, nasal scaup sound. Voice nearly identical to Greater Scaup but slightly higher; flocks create a burbling, nasal chatter.

How big is the Lesser Scaup?

The Lesser Scaup has a wingspan of 39.6 cm, weight of 853.75 g.

What order and family does the Lesser Scaup belong to?

The Lesser Scaup (Aythya affinis) belongs to the order Anseriformes and the family Anatidae.