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  1. H

    Caspian Gull UK

    Hi GMS, To me, this is quite a tricky bird. It may well be a Caspian Gull, a less than typical one in some respects but variation occurs. However, given the existence of F1 and F2 hybrids involving Herring Gull genetic input on one hand, and variation in Yellow-legged Gull on the other, I...
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