My OperaLarus marinus in Portimão fishing harbour
Thursday, May 29, 2008 4:04:51 PM
On May 24th, 2008, I and Luís Campina found a very large Great Black-backed Gull (Larus marinus) in Portimão fishing harbour (Lagoa municipality, Algarve). The 2nd winter bird was notoriously larger than the largest Yellow-leggeg Gulls (Larus michahellis michahellis) and almost twice as large than the smallest Lesser Black-backed Gull (Larus fuscus graellsii/intermedius). The size point out to a young male in the extreme upper size limit.
