1st-summer Herring Gull Larus argentatus 2cy Herring Gull Larus argentatus "J0KM" at Koukku dump 20.5.2008. Foto: Hannu Koskinen 2cy Herring Gull Larus argentatus "J0KM" at Koukku dump 20.5.2008. Foto: Hannu Koskinen 2cy Herring Gull Larus argentatus "J0KM" at Koukku dump 20.5.2008. Foto: Hannu Koskinen 2cy Herring Gull Larus argentatus "J0KM" at Koukku dump 20.5.2008. Foto: Hannu Koskinen 2cy Herring Gull Larus argentatus "J0KM" at Koukku dump 20.5.2008. Foto: Hannu Koskinen