Larus marinus (Great Black-backed Gull)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Anne-line Thingnes Førsund | Vestland, Norway | 2 | 1 | 0 | 2023-02-04 |
| Trond Helge Jensen | Troms, Norway | 2 | 1 | 0 | 2019-10-20 |
| Anne Elisabeth Myrvang | Akershus, Norway | 2 | 1 | 0 | 2023-01-28 |
| Nina Harreschou | Akershus, Norway | 2 | 1 | 0 | 2022-01-30 |
| Trude Malthe Thomassen | Vestfold, Norway | 2 | 1 | 0 | 2019-01-19 |
| Anne-Magrethe Kausland | Vestland, Norway | 2 | 1 | 0 | 2018-01-28 |
| laila reigstad | Vestland, Norway | 2 | 1 | 0 | 2016-02-01 |
| Arvid Georg Larsen | Møre og Romsdal, Norway | 2 | 1 | 0 | 2018-02-04 |
| Gunn Langaas | Troms, Norway | 2 | 1 | 0 | 2016-01-31 |
| oddbjørn Sæter | Troms, Norway | 2 | 1 | 0 | 2020-01-23 |
| Liv Frøydis Hakkebo | Møre og Romsdal, Norway | 2 | 1 | 0 | 2020-01-26 |
| fru Primula | Rogaland, Norway | 2 | 1 | 0 | 2019-01-26 |
| Tove Vinkenes | Telemark, Norway | 2 | 1 | 0 | 2014-01-27 |
| Rita Madsen Nødtvedt | Vestland, Norway | 2 | 1 | 0 | 2023-01-28 |
| ellen westlye | Rogaland, Norway | 2 | 1 | 0 | 2019-01-28 |
| Paal-Magnus Solvang | Nordland, Norway | 2 | 1 | 0 | 2022-10-22 |
| Jean Einar Bollie | Rogaland, Norway | 2 | 1 | 0 | 2022-02-01 |
| Anne Mitsem Borgersen | Vestfold, Norway | 2 | 1 | 0 | 2012-01-29 |
| odd fredriksson | Møre og Romsdal, Norway | 2 | 1 | 0 | 2014-01-26 |
| Åsmund Berg | Innlandet, Norway | 2 | 1 | 0 | 2019-05-08 |
| Ingunn Skre | Troms, Norway | 2 | 1 | 0 | 2021-01-31 |
| Gøril Berg | Trøndelag, Norway | 2 | 1 | 0 | 2020-01-26 |
| Per og Bjørg Engebretsen | Vestfold, Norway | 1 | 1 | 0 | 2015-01-25 |
| Gunnar Berge | Vestland, Norway | 1 | 1 | 0 | 2016-02-02 |
| alfhild pettersen | Nordland, Norway | 1 | 1 | 0 | 2018-10-05 |
| Kari Kvandal | Vestland, Norway | 1 | 1 | 0 | 2018-05-25 |
| Kari Aarøe Holter | Møre og Romsdal, Norway | 1 | 1 | 0 | 2014-01-26 |
| Kåre Olsen | Agder, Norway | 1 | 1 | 0 | 2011-01-30 |
| Leif Bjørn Lunde | Rogaland, Norway | 1 | 1 | 0 | 2014-01-26 |
| Knut Gamst | Finnmark, Norway | 1 | 1 | 0 | 2011-02-09 |
| Stein Tofte | Rogaland, Norway | 1 | 1 | 0 | 2022-01-30 |
| Ken Møller | Vestfold, Norway | 1 | 1 | 0 | 2011-01-29 |
| Steinar Sannes | Telemark, Norway | 1 | 1 | 0 | 2018-01-27 |
| Arne Kjell Askeland | Rogaland, Norway | 1 | 1 | 0 | 2019-01-28 |
| Kolbjørn Berge | Vestfold, Norway | 1 | 1 | 0 | 2010-01-31 |
| Tove Bruun | Akershus, Norway | 1 | 1 | 0 | 2018-05-06 |
| Nordbotten Rune | Vestland, Norway | 1 | 1 | 0 | 2007-10-30 |
| Pynten skole | Østfold, Norway | 1 | 1 | 0 | 2008-03-06 |
| Allan Berg | Nordland, Norway | 1 | 1 | 0 | 2010-04-28 |
| Ingebjørg Dale Madsen | Vestland, Norway | 1 | 1 | 0 | 2012-01-29 |
| Eivind W. Aavik | Agder, Norway | 1 | 1 | 0 | 2010-11-22 |
| Bovild Staabystrand | Agder, Norway | 1 | 1 | 0 | 2010-04-02 |
| helge bolseth | Møre og Romsdal, Norway | 1 | 1 | 0 | 2022-01-30 |
| Knut Totland | Trøndelag, Norway | 1 | 1 | 0 | 2006-01-16 |
| Harald Ellefsen | Oslo, Norway | 1 | 1 | 0 | 2021-01-28 |
| Harald Bukkøy | Vestland, Norway | 1 | 1 | 0 | 2015-01-29 |
| Yngve Roy Kleppang | Vestfold, Norway | 1 | 1 | 0 | 2013-01-26 |
| Daniel Skjauff | Vestfold, Norway | 1 | 1 | 0 | 2009-01-24 |
| utsira fuglestasjon | Rogaland, Norway | 1 | 1 | 0 | 2011-01-26 |
| Ebbestad skole | Buskerud, Norway | 1 | 1 | 0 | 2002-06-07 |