Larus marinus (Great Black-backed Gull)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| A og E Solhaug | Nordland, Norway | 1 | 1 | 0 | 2015-01-25 |
| Jan Jensen | Nordland, Norway | 1 | 1 | 0 | 2015-01-28 |
| Edin Reinholtsen | Nordland, Norway | 1 | 1 | 0 | 2024-04-09 |
| Liv Anne | Akershus, Norway | 1 | 1 | 0 | 2015-05-01 |
| Weibell Marie Bakkane | Rogaland, Norway | 1 | 1 | 0 | 2023-01-28 |
| Ken Andersen | Telemark, Norway | 1 | 1 | 0 | 2016-01-30 |
| Brian Hoy | Trøndelag, Norway | 1 | 1 | 0 | 2015-01-25 |
| Lars-Henrik Jensen | Vestland, Norway | 1 | 1 | 0 | 2023-01-27 |
| Jan Helge Andersen | Nordland, Norway | 1 | 1 | 0 | 2015-01-24 |
| tove kjelgaard | Oslo, Norway | 1 | 1 | 0 | 2016-01-22 |
| Torgeir Sandvik | Rogaland, Norway | 1 | 1 | 0 | 2021-01-31 |
| Nils Christian Bjørgo | Vestland, Norway | 1 | 1 | 0 | 2016-01-24 |
| Siv Brynestad | Vestfold, Norway | 1 | 1 | 0 | 2023-01-28 |
| Per Stensrud | Agder, Norway | 1 | 1 | 0 | 2015-01-24 |
| Martin Jørgensen | Nordland, Norway | 1 | 1 | 1 | 2015-01-26 |
| Torkil Beistad | Akershus, Norway | 1 | 1 | 0 | 2015-01-25 |
| Kjell Inge Kaldhussæter | Vestland, Norway | 1 | 1 | 0 | 2018-01-27 |
| Anita Hamre | Rogaland, Norway | 1 | 1 | 0 | 2022-02-05 |
| Lloyd Kristensen | Agder, Norway | 1 | 1 | 0 | 2015-01-25 |
| Arve Austneberg | Rogaland, Norway | 1 | 1 | 0 | 2015-01-24 |
| Marcus | Rogaland, Norway | 1 | 1 | 0 | 2016-01-20 |
| Hermod Asbjørn Jenssen | Troms, Norway | 1 | 1 | 0 | 2018-01-26 |