Tadorna tadorna (Common Shelduck)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| NOF Hordaland | Vestland, Norway | 22 | 1 | 0 | 2008-03-13 |
| Olaf Hunsdal | Troms, Norway | 14 | 1 | 0 | 2014-05-04 |
| Linda Jasmin Skålvik | Trøndelag, Norway | 11 | 1 | 0 | 2024-03-31 |
| Unni R. Bjerke Gamst | Troms, Norway | 7 | 1 | 0 | 2013-04-17 |
| Paal-Magnus Solvang | Nordland, Norway | 7 | 1 | 0 | 2022-07-01 |
| Martin Andreas Ressem Målø | Trøndelag, Norway | 7 | 1 | 0 | 2024-04-14 |
| Helge Sørheim | Rogaland, Norway | 4 | 1 | 0 | 2017-03-20 |
| Lars Slettom | Trøndelag, Norway | 4 | 1 | 0 | 2011-03-18 |
| Tone M. Bjørstad | Nordland, Norway | 4 | 1 | 0 | 2013-05-05 |
| Rolf Arne Haugen | Møre og Romsdal, Norway | 4 | 1 | 0 | 2021-03-18 |
| Robert A. Hansen | Nordland, Norway | 3 | 1 | 0 | 2016-04-20 |
| Tove Bruun | Akershus, Norway | 3 | 1 | 0 | 2018-05-06 |
| Nyborg skole | Trøndelag, Norway | 3 | 1 | 0 | 2003-04-23 |
| Arve Henningsen | Nordland, Norway | 3 | 1 | 0 | 2009-03-13 |
| Inger Tjong | Nordland, Norway | 2 | 1 | 0 | 2009-05-24 |
| Odd Hjorth -Sørensen | Vestfold, Norway | 2 | 1 | 1 | 2018-04-02 |
| Daniel Rosenstiel | Møre og Romsdal, Norway | 2 | 1 | 0 | 2011-03-14 |
| Reidar Hindrum | Trøndelag, Norway | 2 | 1 | 0 | 2008-04-20 |
| Marthe Larsen Haarr | Troms, Norway | 2 | 1 | 0 | 2024-04-20 |
| Trond Helge Jensen | Troms, Norway | 2 | 1 | 0 | 2012-05-12 |
| Hans Ove Samuelsen | Troms, Norway | 1 | 1 | 0 | 2013-03-29 |
| Kjell Arne Olsen | Vestfold, Norway | 1 | 1 | 0 | 2009-04-06 |
| inger-hanne nysted pletten | Troms, Norway | 1 | 1 | 0 | 2009-04-07 |
| Kjersti Pedersen | Finnmark, Norway | 1 | 1 | 0 | 2010-05-02 |
| Geir Isaksen | Nordland, Norway | 1 | 1 | 0 | 2011-03-26 |
| Erik Imerslund | Finnmark, Norway | 1 | 1 | 0 | 2012-05-01 |
| Åshild Horseide Svenke | Trøndelag, Norway | 1 | 1 | 0 | 2015-02-05 |
| Torunn Eliassen | Vestfold, Norway | 1 | 1 | 0 | 2011-03-30 |
| Anne-Lisbet Trydal | Agder, Norway | 1 | 1 | 0 | 2013-05-03 |
| Bovild Staabystrand | Agder, Norway | 1 | 1 | 0 | 2010-05-02 |
| Arne Kjell Askeland | Rogaland, Norway | 1 | 1 | 0 | 2013-05-13 |
| Marit Andersen | Østfold, Norway | 1 | 1 | 0 | 2013-05-09 |
| Stein Tofte | Rogaland, Norway | 1 | 1 | 0 | 2011-02-20 |
| Heidi Hanssen | Nordland, Norway | 1 | 1 | 0 | 2017-04-04 |
| Mindor Vårvik | Rogaland, Norway | 1 | 1 | 0 | 2013-03-06 |
| beate strøm johansen | Agder, Norway | 1 | 1 | 0 | 2010-05-19 |
| Alexander Severinsen | Agder, Norway | 1 | 1 | 0 | 2014-03-01 |
| Per Marschhäuser | Troms, Norway | 1 | 1 | 0 | 2011-04-02 |
| Torunn Hansen | Nordland, Norway | 1 | 1 | 0 | 2011-04-24 |
| Roar Skjeret | Møre og Romsdal, Norway | 1 | 1 | 2 | 2022-04-14 |
| Espen Arild Bergheim | Telemark, Norway | 1 | 1 | 0 | 2012-03-25 |
| Jan Nyberg | Vestland, Norway | 1 | 1 | 0 | 2012-01-29 |
| Gøsta Vilhelm Rougnø | Trøndelag, Norway | 1 | 1 | 0 | 2012-04-18 |
| Tiril Bakke | Agder, Norway | 1 | 1 | 0 | 2012-03-24 |
| Eirin H | Akershus, Norway | 1 | 1 | 2 | 2013-04-25 |
| Lise Sletvoldd | Nordland, Norway | 1 | 1 | 0 | 2020-05-01 |
| Margaretha Linnea Karlsson | Nordland, Norway | 1 | 1 | 0 | 2010-05-27 |
| Reidar Holvik | Nordland, Norway | 1 | 1 | 0 | 2014-04-04 |
| Åse Slettebøe | Agder, Norway | 1 | 1 | 0 | 2014-02-24 |
| Marianne Haugland Sundby | Trøndelag, Norway | 1 | 1 | 0 | 2014-04-10 |