Canvasback x Scaup Hybrid (Greater/Lesser)
Canvasback x Scaup Hybrid (Greater/Lesser)
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This hybrid results from a cross between a Canvasback (Aythya valisineria) and a scaup species (Greater Scaup, Aythya marila, or Lesser Scaup, Aythya affinis). Such hybrids can present a confusing mix of features, blending the Canvasback's distinctive sloping profile with the scaup's overall coloration and head shape.
Where to spot
Found on large freshwater lakes, reservoirs, and coastal bays where both parent species congregate. This overlap is primarily within North America.
How to spot
Pay close attention to the bill shape (sloping vs. more traditional), head profile (flat vs. peaked), and subtle differences in plumage details, comparing them to known Canvasback and Scaup characteristics. Good lighting is crucial.
When to spot
Most visible during winter and migration periods when mixed flocks of diving ducks are common on open water bodies.
Where to spot
Found on large freshwater lakes, reservoirs, and coastal bays where both parent species congregate. This overlap is primarily within North America.
How to spot
Pay close attention to the bill shape (sloping vs. more traditional), head profile (flat vs. peaked), and subtle differences in plumage details, comparing them to known Canvasback and Scaup characteristics. Good lighting is crucial.
When to spot
Most visible during winter and migration periods when mixed flocks of diving ducks are common on open water bodies.
Hybridization can occur when two species' ranges overlap and suitable mates of their own kind are scarce, leading to interbreeding, particularly among closely related duck species.
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