Heuglin's Gull (L. heuglini / antelius)

(last update: 26-2-2014)
Coordinators:
Amir Ben Dov (Israel)
Chris Gibbins (Scotland)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)

ID 2cy heuglini research

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Heuglini adult, November 30 2009, northern Oman. Picture: Hans Larsson (his website).

Active moult in all flight feather tracts. P6/P9. PMS=35. Outermost secondaries replaced (one-by-one) and now the moult gap in the secondaries rapidly grows as the next feathers are dropped quickly. Outer rectrices still old, as this moult develops centrifugal (starting with inner feathers).