|Audouin's Gull (Ichtyaetus audouinii) 4cy-5cy, APLW, 17/07/2007 & 26/06/2008, Ischia, Italy. Pictures by Vincenzo Cavaliere.
APLW was ringed at the Ebro delta (Spain) on 20/06/04, and photographed in the colony at Ischia, but not breeding. It is in 3rd summer, with dark primaries, and not much yellow at the bill tip.
Image below: Audouin's Gull (Ichtyaetus audouinii) 5cy, APLW, 26/06/2008, Ischia, Italy.
APLW, one year later: 26/06/2008, again at Ischia, Italy. Now in 4th summer (5cy) with normal adult primary pattern.