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  1. S

    Eurasian or American Wigeon, at Mai Po (Hong Kong)?

    Well Jon I'm thoroughly beat by these wigeon! Too much variation and every question answered seemingly generates another that can't be! The female Eurasian Wigeon wing above (in post 12) throws a spanner in the works with everything I thought I understood, but perhaps if it really is one then it...
  2. S

    Eurasian or American Wigeon, at Mai Po (Hong Kong)?

    Further to the above, I found this article online. I've copied the relevant sections on covert patterns of both species, highlighted in different colours, and it would appear that the two females at the bottom of John's link above (screenshots in post 9) fit the description for immature female...
  3. S

    Eurasian or American Wigeon, at Mai Po (Hong Kong)?

    Jon, thanks for getting back to me, and for the additional references and links. For clarity, the greater coverts of female American Wigeon is mentioned as an ID feature in the first edition of Advanced Bird ID Guide, though it's possible that as a reliable ID feature its importance might have...
  4. S

    Eurasian or American Wigeon, at Mai Po (Hong Kong)?

    I think your bird is a European Wigeon, albeit a slightly odd-coloured individual. When researching female American Wigeon ID earlier this autumn, I came across a feature that is potentially quite useful, and is visible in your video. The greater covert pattern of female European Wigeon is...
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