2cy Larus (f.) heuglini


2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Tail is already 2nd generation, but secondaries are still juvenile.
Left wing: P1 2nd gen., p2 missing, p3-4 juvenile, p5-6 renewed (during winter), p7-10 juvenile. Right wing: P1 2nd gen., p2 missing, p3 juvenile, p4-6 renewed (during winter), p7-10 juvenile. This kind of primary moult strategy is not known in 2cy fuscus. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen

Larus (f.) heuglini
2cy Larus (f.) heuglini at Tara, SW Finland 10.06.2007. Foto: Hannu Koskinen