| This adult-basic Siberian Gull (Larus heuglini) was photographed in Bahrain in early March 1999 by Martin Reid. The angular head and large size (the bird behind it is a Caspian Gull) would indicate "Big Pale Heuglini", but the mantle shade looks rather dark: |
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| Here it looks very long-necked as it towers over a barabensis (front left), a cachinnans front right, and a possible immature heuglini (back right): |
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