Mergus
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Solvang i Kvina | Nordland, Norway | 3 | 1 | 0 | 2018-01-28 | |
| Sotra | Vestland, Norway | 1 | 1 | 0 | 2011-12-11 | |
| Spildervatnet | Nordland, Norway | 1 | 1 | 0 | 1994-10-04 | |
| Spro-Svestad | Akershus, Norway | 1 | 1 | 0 | 2012-01-28 | |
| Stegura 21, Eidsbøen nord | Vestland, Norway | 1 | 1 | 0 | 2021-02-12 | |
| Steinberg, Nordmosvingen,Nordmoveien | Buskerud, Norway | 1 | 1 | 0 | 2009-01-25 | |
| Steinvika | Trøndelag, Norway | 3 | 1 | 0 | 2013-01-23 | |
| Stokkalandsvannet | Rogaland, Norway | 1 | 1 | 0 | 2018-02-02 | |
| Storekalvøy | Møre og Romsdal, Norway | 2 | 1 | 0 | 2021-02-01 | |
| Storelven | Buskerud, Norway | 1 | 1 | 0 | 2012-01-24 | |
| Storeng | Troms, Norway | 1 | 1 | 0 | 2018-04-04 | |
| Storhaug | Rogaland, Norway | 1 | 1 | 0 | 2021-02-12 | |
| Storvatnet ved Straum | Trøndelag, Norway | 1 | 1 | 1 | 2009-05-06 | |
| Strand Tønsnes | Troms, Norway | 1 | 1 | 0 | 2017-01-28 | |
| Stranda | Østfold, Norway | 5 | 1 | 0 | 2024-01-28 | |
| Stranda 158 | Vestland, Norway | 1 | 1 | 0 | 2018-01-27 | |
| Strandvegen | Akershus, Norway | 1 | 1 | 0 | 2015-02-01 | |
| Strandvegen, Tromsø sentrum | Troms, Norway | 4 | 1 | 0 | 2016-01-24 | |
| Strandveien | Agder, Norway | 1 | 1 | 0 | 2010-01-30 | |
| Strømsnes | Nordland, Norway | 1 | 1 | 0 | 2011-01-29 | |
| Strømøyveien 269 | Trøndelag, Norway | 3 | 1 | 0 | 2024-01-23 | |
| Stutti | Agder, Norway | 1 | 1 | 0 | 2021-01-28 | |
| Sunde | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-01-31 | |
| Sundsveien 72 | Trøndelag, Norway | 1 | 1 | 0 | 2022-01-30 | |
| Svaet(Tautramoloen) | Trøndelag, Norway | 1 | 1 | 1 | 2013-02-09 | |
| Svestadveien 36 | Akershus, Norway | 1 | 1 | 0 | 2021-01-30 | |
| Svintre 22 | Vestland, Norway | 1 | 1 | 0 | 2024-01-28 | |
| Sævarhagsvikjo/Hystadmarkjo | Vestland, Norway | 1 | 1 | 0 | 2014-01-22 | |
| Søa | Trøndelag, Norway | 3 | 1 | 0 | 2006-01-16 | |
| Sørarnøy | Nordland, Norway | 1 | 1 | 0 | 2022-01-19 | |
| Søreidgrend | Vestland, Norway | 1 | 1 | 0 | 2017-01-29 | |
| Sørnesjevegen 73 | Møre og Romsdal, Norway | 2 | 1 | 0 | 2024-02-04 | |
| Sørsidevegen334 | Møre og Romsdal, Norway | 1 | 1 | 0 | 2020-01-26 | |
| Talvik, storvannet | Finnmark, Norway | 1 | 1 | 0 | 2015-04-29 | |
| Tangnesvegen 542b | Innlandet, Norway | 1 | 1 | 0 | 2020-02-01 | |
| Telavåg | Vestland, Norway | 1 | 1 | 0 | 2011-12-12 | |
| Terråk | Nordland, Norway | 1 | 1 | 0 | 2023-01-21 | |
| Tesaker Gyland | Agder, Norway | 3 | 2 | 0 | 2010-04-27 | |
| Tisleidalen | Innlandet, Norway | 2 | 1 | 0 | 2022-02-02 | |
| Toftenes | Nordland, Norway | 3 | 2 | 0 | 2015-01-28 | |
| Toppelbuktveien 354 | Troms, Norway | 1 | 1 | 0 | 2021-01-31 | |
| Torblå | Vestland, Norway | 1 | 1 | 0 | 2016-01-30 | |
| Torsmo Senja | Troms, Norway | 1 | 1 | 0 | 2015-06-25 | |
| Toskavegen 562 | Vestland, Norway | 1 | 1 | 0 | 2021-01-03 | |
| Trodalveien 48 | Rogaland, Norway | 1 | 1 | 0 | 2022-01-28 | |
| Træet 20 5986 Hosteland | Vestland, Norway | 1 | 1 | 0 | 2018-04-16 | |
| tønsberg | Vestfold, Norway | 1 | 1 | 1 | 2015-03-04 | |
| Tårnvik | Nordland, Norway | 8 | 2 | 0 | 2018-03-24 | |
| Ulla, Jøsenfjorden | Rogaland, Norway | 1 | 1 | 1 | 2020-02-01 | |
| Undredal | Vestland, Norway | 4 | 1 | 3 | 2022-01-31 |