Wildlifeof Thailand
Greater Scaup
Anatidae
Photo: (c) Gavin Slater, some rights reserved (CC BY) · CC-BY (May be cropped or resized)
Aythya marila
Basic stats
Diet
Molluscs, crustaceans, aquatic insects and plants
Habitat
Tundra lakes; coastal bays and large lakes in winter
Range
Northern Eurasia and North America
Clutch size
6–9 eggs
Size
39–56cm
Wingspan
71–84cm
The male greater scaup has a rounded dark-green head, black breast and pale grey back; the female is brown with a broad white patch around the bill. It breeds beside tundra lakes across northern Eurasia and North America and winters on coastal bays and large lakes. Flocks dive for molluscs, crustaceans, aquatic insects and plant matter, sometimes gathering in very large numbers (Wikipedia, general species account). It is Nationally Least Concern (Thailand Red Data 2025).
Quick answers
- What does the Greater Scaup eat?
- Molluscs, crustaceans, aquatic insects and plants
- What habitat does the Greater Scaup live in?
- Tundra lakes; coastal bays and large lakes in winter
- Where is the Greater Scaup found?
- Northern Eurasia and North America
- How many eggs does the Greater Scaup lay?
- 6–9 eggs
- How big is the Greater Scaup?
- 39–56cm
- What is the wingspan of the Greater Scaup?
- 71–84cm