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Friday, 22 November 2019

Colour ringed Black-headed Gull

Black-headed Gull photographed at Benson Lock today by Alan Dawson. Have done some initial looking but not making progress. Any ideas?



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2 comments:

  1. Isaac West23 November 2019 at 08:50

    I believe it may be from this colour ringing scheme in Norway http://www.cr-birding.org/node/2405

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  2. Oxonbirder23 November 2019 at 22:17

    Thank you, am following up. Cheers

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