Lesser Black-backed Gull 2CY, May 29 2017, Heemskerk, the Netherlands.
      Bird is not ringed, no provenance on origin. Intermedius-type 2CY bird. 
       Post-juvenile moult include many inner wing-coverts and tertials. Also R3 replaced. 
        Complete moult  started: P1-P2 missing.
       
     
  |