Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

(2 images) LBBG 2cy March 05 2004, Amsterdam, the Netherlands (picture by Ruud Altenburg).

The tail, all the wing-coverts and the tertials are still juvenile and the inner coverts are very worn. The second generation scapulars are almost plain grey. The rear lower scapulars are still juvenile.  The bill has a paler base on the lower mandible.