Larus marinus (Great Black-backed Gull)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Astrid Haugland | Rogaland, Norway | 3 | 1 | 0 | 2016-01-30 |
| Odd Hallaråker | Vestland, Norway | 3 | 1 | 0 | 2016-01-31 |
| Hans Magne Christiansen | Agder, Norway | 3 | 1 | 0 | 2018-01-25 |
| Yvonne Sawusch | Møre og Romsdal, Norway | 3 | 1 | 0 | 2023-01-06 |
| Roar Skjeret | Møre og Romsdal, Norway | 3 | 1 | 1 | 2022-05-04 |
| Steinar Åheim | Møre og Romsdal, Norway | 3 | 1 | 0 | 2019-01-20 |
| Kari-Mette Aamelfot Tveit | Møre og Romsdal, Norway | 3 | 1 | 0 | 2023-01-29 |
| Cato Berg | Østfold, Norway | 3 | 1 | 0 | 2023-01-29 |
| Målfrid Pedersen | Nordland, Norway | 3 | 1 | 0 | 2024-01-27 |
| Bergen Kristne grunnskole | Vestland, Norway | 3 | 1 | 0 | 2008-06-17 |
| Christine Haugs Andersen | Oslo, Norway | 3 | 1 | 0 | 2022-01-24 |
| Gunnar Bjørn Gade | Vestfold, Norway | 3 | 1 | 0 | 2023-01-28 |
| Eva Annie Frantzen | Troms, Norway | 3 | 1 | 0 | 2024-01-28 |
| Hanna Cesilie Brattsti | Troms, Norway | 3 | 1 | 1 | 2016-02-07 |
| Trine Lise Fjelldal | Møre og Romsdal, Norway | 3 | 1 | 0 | 2020-01-26 |
| Anders Braanaas | Vestland, Norway | 3 | 1 | 0 | 2015-01-26 |
| Gunn-T. Høgstad | Troms, Norway | 3 | 1 | 0 | 2018-01-26 |
| Lena Helvik | Vestland, Norway | 3 | 1 | 0 | 2024-01-22 |
| Frode Falkenberg | Vestland, Norway | 2 | 1 | 0 | 2014-11-02 |
| Leirbotn Oppvekstsenter/Avdeling skole | Finnmark, Norway | 2 | 1 | 0 | 2003-09-11 |
| Dag Steinar Næss | Vestland, Norway | 2 | 1 | 0 | 2023-01-30 |
| Gunnhild Elise Abrahamsen | Rogaland, Norway | 2 | 1 | 0 | 2019-01-27 |
| Jens-Are Johansen | Nordland, Norway | 2 | 1 | 0 | 2022-01-01 |
| Store Bergan skole | Vestfold, Norway | 2 | 1 | 0 | 2002-06-13 |
| Gøril Berg | Trøndelag, Norway | 2 | 1 | 0 | 2020-01-26 |
| Marion Forsgren Olsen | Troms, Norway | 2 | 1 | 0 | 2023-01-29 |
| Anne-Magrethe Kausland | Vestland, Norway | 2 | 1 | 0 | 2018-01-28 |
| Trude Malthe Thomassen | Vestfold, Norway | 2 | 1 | 0 | 2019-01-19 |
| Nina Harreschou | Akershus, Norway | 2 | 1 | 0 | 2022-01-30 |
| Arvid Georg Larsen | Møre og Romsdal, Norway | 2 | 1 | 0 | 2018-02-04 |
| Liv Frøydis Hakkebo | Møre og Romsdal, Norway | 2 | 1 | 0 | 2020-01-26 |
| laila reigstad | Vestland, Norway | 2 | 1 | 0 | 2016-02-01 |
| Ole Øystein Nybø | Møre og Romsdal, Norway | 2 | 1 | 0 | 2020-01-26 |
| fru Primula | Rogaland, Norway | 2 | 1 | 0 | 2019-01-26 |
| Audun Nordbotten | Vestfold, Norway | 2 | 1 | 0 | 2011-01-30 |
| Tove Vinkenes | Telemark, Norway | 2 | 1 | 0 | 2014-01-27 |
| Ingunn Skre | Troms, Norway | 2 | 1 | 0 | 2021-01-31 |
| Alek Nordbø | Vestland, Norway | 2 | 1 | 0 | 2023-01-28 |
| Rita Madsen Nødtvedt | Vestland, Norway | 2 | 1 | 0 | 2023-01-28 |
| Per a. Rødøy | Trøndelag, Norway | 2 | 1 | 0 | 2024-01-27 |
| Hanne Etnestad | Trøndelag, Norway | 2 | 1 | 0 | 2015-01-24 |
| Finn Jørgensen | Agder, Norway | 2 | 1 | 0 | 2010-01-31 |
| alf martin waage | Vestland, Norway | 2 | 1 | 0 | 2011-01-30 |
| Åsmund Berg | Innlandet, Norway | 2 | 1 | 0 | 2019-05-08 |
| Kjellaug Lønning | Vestland, Norway | 2 | 1 | 0 | 2024-01-23 |
| Arild Dahle | Nordland, Norway | 2 | 1 | 0 | 2018-02-02 |
| Arne Johan Finne | Agder, Norway | 2 | 1 | 0 | 2015-01-25 |
| Paal-Magnus Solvang | Nordland, Norway | 2 | 1 | 0 | 2022-10-22 |
| ellen westlye | Rogaland, Norway | 2 | 1 | 0 | 2019-01-28 |
| Trond Helge Jensen | Troms, Norway | 2 | 1 | 0 | 2019-10-20 |