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  1. B

    Diver - Yellow-billed or Great northern, Denmark 04/04/2024

    Are they apparent? I see a pattern on fore-neck and side of neck which is essentially mushy and could easily be consistent with great northern diver, a hindneck which is (at least) as dark as the upperwing which thus seems better for great northern diver than for white-billed diver, and an...
  2. B

    Diver - Yellow-billed or Great northern, Denmark 04/04/2024

    Given the low quality of the photos (no offence to the OP) I believe it unsafe to draw these conclusions.
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