Heuglin's Gull (L. heuglini / antelius)(last update: |
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Heuglini adult, November 30 2009, northern Oman. Picture: Hans Larsson (his website).Active moult in all flight feather tracts. P5/P9. PMS=32. Outermost secondary just dropped. Active moult in rectrices, moult almost completed. Note missing central greater coverts exposing the secondaries underneath. Mirror on P9 just a white line a little broader than the shaft. |
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