Presumed hybrid Gull Larus argentatus x marinus


Presumed hybrid Herring Gull L. argentatus x Great Black-backed Gull L. marinus at Koukkujärvi dump, Nokia, SW Finland 11.10.2008.
Foto: Hannu Koskinen. Clearly larger in size than any argentatus (3ad GBBG were spotted also in straight comparison).
Note bill shape between typical Herring and Great Black-backed Gull.


Presumed hybrid Herring Gull L. argentatus x Great Black-backed Gull L. marinus at Koukkujärvi dump, Nokia, SW Finland 11.10.2008.
Foto: Hannu Koskinen. Characters not clearly visible on these long distance photos are: reduced amount of black in p5, p9 3/4 growing, p10 not visible. Eye color pale yellow, legs pinkish flesh. Tail all white. According to plenty of black on bill this bird probably is an older subadult, 5cy parhaps?