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)

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

Active moult in all flight feather tracts. P6/P9. PMS=34. Outermost secondary just dropped. Active moult in rectrices. Outer rectrices (R5) still old, as this moult develops centrifugal (starting with inner feathers).