Larus fuscus (Lesser Black-backed Gull)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| NOF Hordaland | Vestland, Norway | 53 | 1 | 0 | 2008-04-03 |
| Kjell Hammersland | Rogaland, Norway | 21 | 1 | 0 | 2019-04-08 |
| Myrto Pyrli | Akershus, Norway | 13 | 1 | 0 | 2018-04-21 |
| Frode Falkenberg | Vestland, Norway | 10 | 1 | 1 | 2014-08-08 |
| Trygve Kolstad | Vestland, Norway | 9 | 1 | 0 | 2024-04-15 |
| Fjell ungdomsskule | Vestland, Norway | 8 | 1 | 0 | 2006-05-09 |
| Leif Christian Torsøe | Agder, Norway | 6 | 1 | 0 | 2017-04-25 |
| Bergen katedralskole | Vestland, Norway | 5 | 1 | 3 | 2021-08-26 |
| Kaland barne- og ungdomsskule | Vestland, Norway | 4 | 1 | 1 | 2018-04-23 |
| Odd Ivar Woll | Troms, Norway | 3 | 1 | 0 | 2009-05-29 |
| Edin Reinholtsen | Nordland, Norway | 3 | 1 | 0 | 2024-03-10 |
| Bergen Kristne grunnskole | Vestland, Norway | 3 | 1 | 0 | 2008-06-17 |
| Nordbotten Rune | Vestland, Norway | 2 | 1 | 0 | 2008-05-18 |
| Arne Kjell Askeland | Rogaland, Norway | 2 | 1 | 0 | 2020-05-11 |
| Per Torgersen | Akershus, Norway | 2 | 1 | 0 | 2024-05-14 |
| Bovild Staabystrand | Agder, Norway | 2 | 1 | 0 | 2011-04-21 |
| gunn Oddlaug Bråthen | Agder, Norway | 2 | 1 | 0 | 2015-04-20 |
| Vinnes friskule | Vestland, Norway | 2 | 1 | 0 | 2012-04-04 |
| Sveinung Larsson | Vestland, Norway | 2 | 1 | 0 | 2024-04-22 |
| Vardafjell videregående skole | Rogaland, Norway | 1 | 1 | 0 | 1994-11-15 |
| Erling Utne | Vestland, Norway | 1 | 1 | 0 | 2024-04-16 |
| Hustadvika vidaregåande skole | Møre og Romsdal, Norway | 1 | 1 | 0 | 1993-06-16 |
| Store Bergan skole | Vestfold, Norway | 1 | 1 | 0 | 2001-05-30 |
| Meldal Ungdomsskole/løkken barneskole | Trøndelag, Norway | 1 | 1 | 0 | 2008-06-17 |
| Ebbestad skole | Buskerud, Norway | 1 | 1 | 0 | 2002-06-07 |
| Storetveit skole | Vestland, Norway | 1 | 1 | 1 | 2006-06-29 |
| Skranevatnet skole | Vestland, Norway | 1 | 1 | 0 | 2012-05-08 |
| Heine A. Halstensen | Vestland, Norway | 1 | 1 | 0 | 2021-05-16 |
| Nordisk Naturskule Eidfjord | Vestland, Norway | 1 | 1 | 0 | 2007-05-07 |
| Elly Hardy Bakstad | Vestfold, Norway | 1 | 1 | 0 | 2010-04-19 |
| Roar Skjeret | Møre og Romsdal, Norway | 1 | 1 | 2 | 2022-04-14 |
| Marthe Westskog | Akershus, Norway | 1 | 1 | 0 | 2012-07-16 |
| Per Sveinung Lønning | Vestland, Norway | 1 | 1 | 0 | 2015-04-26 |
| Kristine Hovden | Agder, Norway | 1 | 1 | 0 | 2023-04-06 |
| Richard | Akershus, Norway | 1 | 1 | 0 | 2016-03-28 |
| Stine-Elin Helmers Øvrebø | Vestland, Norway | 1 | 1 | 0 | 2024-04-26 |
| Odd Hjorth -Sørensen | Vestfold, Norway | 1 | 1 | 0 | 2018-03-27 |
| Elin Hausken | Rogaland, Norway | 1 | 1 | 1 | 2022-04-26 |
| Olav Martinus Rabben | Vestland, Norway | 1 | 1 | 0 | 2022-11-01 |