Birds

Shelduck x Common Eider Hybrid

Shelduck x Common Eider Hybrid

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Not yet spotted on Fladder
Spotted
This extremely rare hybrid results from a cross between a Common Shelduck (Tadorna tadorna) and a Common Eider (Somateria mollissima), two very distinct duck species from different genera. Such a hybrid would display a truly unusual combination of features.
Where to spot
Extremely unlikely to be observed. If it were, it would be in areas where both parent species coexist, typically coastal Europe or parts of Eurasia, but this is highly speculative given its rarity.
How to spot
Look for a mix of the Shelduck's distinctive red bill and body pattern (e.g., dark head, white breast band, chestnut band) with the larger, heavier build and head shape of an eider. This would be a highly unusual bird requiring careful documentation and expert confirmation.
When to spot
No specific time; such an occurrence would be a highly unusual and isolated sighting, not tied to a particular season or migratory pattern.
Hybrids between different genera are exceptionally rare and often sterile, representing a fascinating anomaly in the avian world that is seldom observed in the wild.
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