Birds

King Eider x Common Eider Hybrid

King Eider x Common Eider Hybrid

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Not yet spotted on Fladder
Spotted
This hybrid is formed between a King Eider (Somateria spectabilis) and a Common Eider (Somateria mollissima), two large, robust sea ducks of the Arctic. The resulting bird would display a fascinating mix of the intricate head patterns and striking plumages of both parent species.
Where to spot
Likely in areas where their breeding or wintering ranges overlap, particularly in the High Arctic or subarctic coastal zones of Eurasia and North America.
How to spot
Look for a bird with a combination of the King Eider's prominent frontal knob/shield and the Common Eider's bill feathering, along with mixed patterns in head and body plumage. Focus on bill structure, forehead shape, and head/nape coloration.
When to spot
Most probable during breeding season (summer) or migration when both species are in proximity, though any sighting would be rare and opportunistic.
While both species are eiders, their distinct bill and forehead structures in adult males mean that hybrids often have intermediate features that are very noticeable, making them challenging but exciting finds.
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