Heuglin's Gull (L. heuglini / antelius)

(last update: 26-2-2014)

Amir Ben Dov (Israel)
Chris Gibbins (Scotland)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)

Heuglini 1cy, November 30 2009, northern Oman. Picture: Hans Larsson (his website).

Juvenile plumage by late November, but moult in scapulars started. US: 50-75%, LS: 1-25%, TOT SCAPS: 25-50%. Tertials and wing-coverts juvenile. Bill base starts to turn paler. Obvious piano-key pattern on inner gc.