Mergus serrator (Red-breasted Merganser)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Skolelaboratoriet i realfag, UiB | Vestland, Norway | 1 | 1 | 0 | 2011-12-12 |
| Frede Thorsheim | Vestland, Norway | 1 | 1 | 0 | 2012-03-11 |
| Trond Helge Jensen | Troms, Norway | 1 | 1 | 0 | 2017-01-28 |
| Billefjord Sjøsamiske Oppvekstsenter/Billefjord skole | Finnmark, Norway | 1 | 1 | 0 | 2011-05-09 |
| Kjell Erik Schrøder | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-01-26 |
| Kjell Erik Schrøder | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-01-27 |
| Gro van der Meeren | Vestland, Norway | 1 | 1 | 0 | 2021-02-12 |
| Julian Bell | Vestland, Norway | 1 | 1 | 0 | 2021-01-25 |
| Uregistrert hagefuglteller | Trøndelag, Norway | 1 | 1 | 0 | 2010-01-30 |
| didrik | Østfold, Norway | 1 | 1 | 0 | 2008-03-14 |
| Knut Edvardsen | Nordland, Norway | 1 | 1 | 0 | 2008-03-29 |
| Lene Larsen | Trøndelag, Norway | 1 | 1 | 1 | 2008-04-04 |
| Dag Audun Tesaker Tollaksen | Agder, Norway | 1 | 1 | 0 | 2009-05-26 |
| Kjell-Magne Ellingsen | Buskerud, Norway | 1 | 1 | 0 | 2009-06-14 |
| Ellen kasbohm | Akershus, Norway | 1 | 1 | 0 | 2022-01-30 |
| RUTH KARIN HOLMSTAD | Troms, Norway | 1 | 1 | 0 | 2017-01-29 |
| Tove Bruun | Akershus, Norway | 1 | 1 | 0 | 2018-04-20 |
| Roy Kollersen | Nordland, Norway | 1 | 1 | 0 | 2024-01-20 |
| Sigrid Iversen | Troms, Norway | 1 | 1 | 0 | 2010-01-31 |
| Trine Ørbog | Møre og Romsdal, Norway | 1 | 1 | 0 | 2011-01-30 |
| Einar Sande | Rogaland, Norway | 1 | 1 | 0 | 2022-01-29 |
| helen lorraine jacobsen | Buskerud, Norway | 1 | 1 | 0 | 2013-05-03 |
| Kjetil Bjørdal | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-01-31 |
| Håkon Arne Helleseng | Agder, Norway | 1 | 1 | 0 | 2013-02-02 |
| Nina Elisabeth Bøe | Møre og Romsdal, Norway | 1 | 1 | 0 | 2012-01-25 |
| Rolf Tag | Agder, Norway | 1 | 1 | 0 | 2013-01-26 |
| Finn Jørgensen | Agder, Norway | 1 | 1 | 0 | 2010-01-31 |
| Rut Helene Langebrekke Nilsen | Trøndelag, Norway | 1 | 1 | 0 | 2010-01-31 |
| Jan Veigård | Nordland, Norway | 1 | 1 | 0 | 2011-01-29 |
| Anne-Lisbet Trydal | Agder, Norway | 1 | 1 | 0 | 2013-04-28 |
| Runar Amdam | Møre og Romsdal, Norway | 1 | 1 | 0 | 2019-01-26 |
| Hans A. Olsvik | Møre og Romsdal, Norway | 1 | 1 | 0 | 2013-01-27 |
| Martin Andreas Ressem Målø | Trøndelag, Norway | 1 | 1 | 0 | 2010-02-04 |
| Oddny-Liv Haugen | Møre og Romsdal, Norway | 1 | 1 | 0 | 2015-01-25 |
| Harald Ellefsen | Oslo, Norway | 1 | 1 | 0 | 2021-01-28 |
| Anders Braanaas | Vestland, Norway | 1 | 1 | 0 | 2017-01-22 |
| Britt Furseth | Møre og Romsdal, Norway | 1 | 1 | 0 | 2022-01-30 |
| alfhild pettersen | Nordland, Norway | 1 | 1 | 0 | 2018-10-05 |
| Rune Horn | Nordland, Norway | 1 | 1 | 0 | 2024-01-21 |
| Elizabeth Riiber Elgvin | Vestfold, Norway | 1 | 1 | 0 | 2019-01-26 |
| christian størmer | Akershus, Norway | 1 | 1 | 0 | 2017-01-28 |
| odd fredriksson | Møre og Romsdal, Norway | 1 | 1 | 0 | 2012-01-29 |
| Berit Bachen Dahle | Vestland, Norway | 1 | 1 | 0 | 2014-01-25 |
| Johan Ivar Solholm | Møre og Romsdal, Norway | 1 | 1 | 0 | 2016-01-24 |
| Gunnar Godø | Møre og Romsdal, Norway | 1 | 1 | 0 | 2015-01-25 |
| Torunn Hansen | Nordland, Norway | 1 | 1 | 0 | 2011-04-24 |
| Frede Thorsheim | Vestland, Norway | 1 | 1 | 0 | 2011-12-11 |
| Per Aage Bolstad | Vestland, Norway | 1 | 1 | 0 | 2013-03-15 |
| Espen Arild Bergheim | Telemark, Norway | 1 | 1 | 0 | 2012-03-25 |
| Britt Helen Gundersen | Oslo, Norway | 1 | 1 | 0 | 2017-04-29 |