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  1. KenM

    Dark backed Gull on the Thames?

    Certainly not a stupid question Louis P, as was mine....regarding the "short" primary projection, which I'd have thought would have been at odds with fuscus? Cheers
  2. KenM

    Dark backed Gull on the Thames?

    Found this yesterday late afternoon, certainly the darkest backed graellsii that I've ever seen, thus discounting fuscus,......intermedius was my next port of call. However am unsure as to whether the pp still has some growth to follow, as the distance between tail end and pp appears somewhat...
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