White-winged/Stejneger's Scoter Group
White-winged/Stejneger's Scoter Group
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Not yet spotted on Fladder
Spotted
This grouping signifies an observation of a scoter that is either a White-winged Scoter or a Stejneger's Scoter. These two species were formerly considered conspecific and share very similar features.
Where to spot
Coastal waters and large northern freshwater bodies across North America (White-winged) and Asia (Stejneger's), often with overlapping ranges in the Pacific.
How to spot
Both are large, dark scoters with prominent white wing patches. To distinguish them, focus on the bill: the Stejneger's Scoter generally has a steeper forehead and a more triangular bill profile than the White-winged Scoter.
When to spot
During winter along coasts, and in summer for breeding in northern freshwater lakes and tundra ponds.
Where to spot
Coastal waters and large northern freshwater bodies across North America (White-winged) and Asia (Stejneger's), often with overlapping ranges in the Pacific.
How to spot
Both are large, dark scoters with prominent white wing patches. To distinguish them, focus on the bill: the Stejneger's Scoter generally has a steeper forehead and a more triangular bill profile than the White-winged Scoter.
When to spot
During winter along coasts, and in summer for breeding in northern freshwater lakes and tundra ponds.
The primary distinction between the White-winged and Stejneger's Scoters lies in subtle bill characteristics, particularly the shape of the bill knob and the position of the nostrils.
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