Mergus serrator (Red-breasted Merganser)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Inge Olav Schaathun | Vestland, Norway | 2 | 1 | 0 | 2022-01-23 |
| Runs Kvalsund | Møre og Romsdal, Norway | 2 | 1 | 0 | 2022-01-30 |
| Bjarne Nikolaisen | Nordland, Norway | 2 | 1 | 0 | 2022-01-30 |
| Jannicke tanita johnson | Møre og Romsdal, Norway | 2 | 1 | 0 | 2019-01-26 |
| Rolf Hjortland | Vestland, Norway | 2 | 1 | 0 | 2020-01-26 |
| Turid Iversen | Møre og Romsdal, Norway | 2 | 1 | 0 | 2021-02-01 |
| Eivind Salomonsen | Rogaland, Norway | 1 | 1 | 0 | 2023-01-27 |
| Anne Lise Breievne | Vestland, Norway | 1 | 1 | 0 | 2019-01-24 |
| Rune Voie | Vestland, Norway | 1 | 1 | 0 | 2020-01-24 |
| Torill Iversen | Finnmark, Norway | 1 | 1 | 0 | 2022-01-26 |
| Audun Dahle | Møre og Romsdal, Norway | 1 | 1 | 0 | 2020-01-26 |
| Oddvin Harald Hagen | Nordland, Norway | 1 | 1 | 0 | 2023-01-21 |
| Marit Bergvoll | Vestland, Norway | 1 | 1 | 0 | 2021-01-03 |
| Olaf Jensen | Rogaland, Norway | 1 | 1 | 0 | 2023-02-04 |
| Pádhraic Mulholland | Vestland, Norway | 1 | 1 | 0 | 2024-01-29 |
| Finn Våge | Rogaland, Norway | 1 | 1 | 0 | 2021-01-30 |
| Bodil Olsvik | Troms, Norway | 1 | 1 | 0 | 2022-01-30 |
| Anne Marie Bøtun Øyri | Vestland, Norway | 1 | 1 | 0 | 2021-02-01 |
| Nina Krogh | Vestfold, Norway | 1 | 1 | 0 | 2023-01-28 |
| Dag Gjerstad | Troms, Norway | 1 | 1 | 0 | 2021-01-31 |
| Aasmund Frøseth | Trøndelag, Norway | 1 | 1 | 0 | 2022-01-30 |
| Rune Jonsen | Møre og Romsdal, Norway | 1 | 1 | 0 | 2021-01-31 |
| Lloyd Kristensen | Agder, Norway | 1 | 1 | 0 | 2021-01-30 |
| Ulrik Haugen | Trøndelag, Norway | 1 | 1 | 0 | 2022-01-30 |
| Bjørg Ågådt Djuvik | Rogaland, Norway | 1 | 1 | 0 | 2021-01-31 |
| Dorthe Lervik | Møre og Romsdal, Norway | 1 | 1 | 0 | 2021-01-30 |
| Henning Bergsnes | Møre og Romsdal, Norway | 1 | 1 | 0 | 2021-01-25 |
| Austreid | Rogaland, Norway | 1 | 1 | 0 | 2021-01-24 |
| Lars Bjørgo | Vestland, Norway | 1 | 1 | 0 | 2021-12-04 |
| Håkon Fensbekk | Østfold, Norway | 1 | 1 | 0 | 2023-02-02 |
| Monica J. Paulsen | Agder, Norway | 1 | 1 | 0 | 2023-01-29 |
| Aage Gunnar Kyllo | Møre og Romsdal, Norway | 1 | 1 | 0 | 2023-02-04 |
| Helge Mikalsen | Rogaland, Norway | 1 | 1 | 0 | 2022-01-28 |
| Frode Sørnes Olsen | Nordland, Norway | 1 | 1 | 0 | 2022-01-30 |
| Turid Markussen | Troms, Norway | 1 | 1 | 0 | 2022-01-30 |
| Øyvind | Vestland, Norway | 1 | 1 | 0 | 2024-01-28 |
| Hanne Hveding | Troms, Norway | 1 | 1 | 0 | 2024-02-03 |
| Nikolaj Bugge Erstad | Møre og Romsdal, Norway | 1 | 1 | 1 | 2023-09-29 |
| Per M. Blomvik | Møre og Romsdal, Norway | 1 | 1 | 0 | 2024-01-28 |
| Josefine Markvoll | Nordland, Norway | 1 | 1 | 0 | 2024-01-21 |
| Birgit Moen Evensen | Nordland, Norway | 1 | 1 | 0 | 2024-02-04 |
| Fusa videregående skole | Vestland, Norway | 1 | 1 | 0 | 1991-06-06 |
| Karin Jenssen | Troms, Norway | 1 | 1 | 0 | 2024-02-03 |
| Sunndal vidaregåande skole | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-11-22 |
| Bjertnes videregående skole | Akershus, Norway | 1 | 1 | 0 | 1996-08-30 |
| Fauskanger barne- og ungdomsskole | Vestland, Norway | 1 | 1 | 0 | 2009-02-12 |
| Fjell ungdomsskule | Vestland, Norway | 1 | 1 | 0 | 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 |
| Bergen Kristne grunnskole | Vestland, Norway | 1 | 1 | 0 | 2004-06-04 |