Larus marinus (Great Black-backed Gull)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Randi Lundebrekke Vik | Møre og Romsdal, Norway | 1 | 1 | 0 | 2024-01-27 |
| Vest-Lofoten videregående skole / Lofoten Maritime Fagskole | Nordland, Norway | 1 | 1 | 0 | 1998-09-07 |
| Vardafjell videregående skole | Rogaland, Norway | 1 | 1 | 0 | 1994-11-15 |
| Granly skole | Vestfold, Norway | 1 | 1 | 0 | 2002-04-10 |
| Øystese barneskule | Vestland, Norway | 1 | 1 | 0 | 2020-01-28 |
| Fauskanger barne- og ungdomsskole | Vestland, Norway | 1 | 1 | 0 | 2009-02-12 |
| Meløy videregående skole/Avd Inndyr | Nordland, Norway | 1 | 1 | 0 | 1995-06-08 |
| Re videregående skole | Vestfold, Norway | 1 | 1 | 0 | 2016-01-30 |
| Lundsvågen Naturskole | Rogaland, Norway | 1 | 1 | 0 | 2001-05-07 |
| Fjell ungdomsskule | Vestland, Norway | 1 | 1 | 1 | 2006-05-09 |
| Sunnylven skule | Møre og Romsdal, Norway | 1 | 1 | 0 | 2002-04-25 |
| Ebbestad skole | Buskerud, Norway | 1 | 1 | 0 | 2002-06-07 |
| Straumen skole | Troms, Norway | 1 | 1 | 0 | 2004-04-01 |
| Hellen skole | Vestland, Norway | 1 | 1 | 0 | 2011-04-05 |
| Sonans Privatgymnas AS/Avd Bergen | Vestland, Norway | 1 | 1 | 0 | 2004-09-15 |
| Skranevatnet skole | Vestland, Norway | 1 | 1 | 0 | 2012-05-08 |
| Skolelaboratoriet i realfag, UiB | Vestland, Norway | 1 | 1 | 0 | 2011-12-12 |
| utsira fuglestasjon | Rogaland, Norway | 1 | 1 | 0 | 2011-01-26 |
| Knut Totland | Trøndelag, Norway | 1 | 1 | 0 | 2006-01-16 |
| Pynten skole | Østfold, Norway | 1 | 1 | 0 | 2008-03-06 |
| Nordbotten Rune | Vestland, Norway | 1 | 1 | 0 | 2007-10-30 |
| Oddvar Heggøy | Vestland, Norway | 1 | 1 | 0 | 2016-01-30 |
| Kristine Jacobsen | Nordland, Norway | 1 | 1 | 0 | 2014-01-19 |
| Vegard Bunes | Agder, Norway | 1 | 1 | 0 | 2012-01-28 |
| Husvær skole | Nordland, Norway | 1 | 1 | 0 | 2008-03-25 |
| jarle takvam | Vestland, Norway | 1 | 1 | 0 | 2008-01-26 |
| Sæbjørg Walaker Nordeide | Vestland, Norway | 1 | 1 | 0 | 2014-01-25 |
| Gro van der Meeren | Vestland, Norway | 1 | 1 | 0 | 2022-01-30 |
| Karl.Hugo.Grindheim | Vestland, Norway | 1 | 1 | 0 | 2014-01-19 |
| Kjetil Solbakken | Trøndelag, Norway | 1 | 1 | 0 | 2016-01-31 |
| Daniel Skjauff | Vestfold, Norway | 1 | 1 | 0 | 2009-01-24 |
| helge bolseth | Møre og Romsdal, Norway | 1 | 1 | 0 | 2022-01-30 |
| Ingebjørg Dale Madsen | Vestland, Norway | 1 | 1 | 0 | 2012-01-29 |
| Tove Bruun | Akershus, Norway | 1 | 1 | 0 | 2018-05-06 |
| Kolbjørn Berge | Vestfold, Norway | 1 | 1 | 0 | 2010-01-31 |
| Steinar Sannes | Telemark, Norway | 1 | 1 | 0 | 2018-01-27 |
| Kåre Olsen | Agder, Norway | 1 | 1 | 0 | 2011-01-30 |
| helen lorraine jacobsen | Buskerud, Norway | 1 | 1 | 0 | 2013-05-03 |
| Steinerskolen på Rotvoll | Trøndelag, Norway | 1 | 1 | 1 | 2019-08-22 |
| Hadsel videregående skole | Nordland, Norway | 1 | 1 | 0 | 2010-05-19 |
| Odd Einar Svendsen | Rogaland, Norway | 1 | 1 | 0 | 2022-01-30 |
| Linda White | Trøndelag, Norway | 1 | 1 | 0 | 2019-01-27 |
| Svein Jonny Zakariassen | Rogaland, Norway | 1 | 1 | 0 | 2015-01-25 |
| Mette Olsen | Nordland, Norway | 1 | 1 | 0 | 2010-02-27 |
| Kurt Mydland | Rogaland, Norway | 1 | 1 | 0 | 2023-01-29 |
| Nina Elisabeth Bøe | Møre og Romsdal, Norway | 1 | 1 | 0 | 2012-01-25 |
| Kjell Omar Løvdal | Agder, Norway | 1 | 1 | 0 | 2015-01-25 |
| odd fredriksson | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-01-31 |
| Helge Haugland | Rogaland, Norway | 1 | 1 | 0 | 2014-01-26 |
| Marian | Nordland, Norway | 1 | 1 | 0 | 2013-01-26 |