Cepphus grylle (Black Guillemot)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| magnus jenssen | Troms, Norway | 10 | 1 | 0 | 2021-04-24 |
| Birgit Moen Evensen | Nordland, Norway | 5 | 1 | 0 | 2023-01-29 |
| Kirsti Hundstad | Troms, Norway | 4 | 1 | 2 | 2024-01-28 |
| Bente Sjursen | Finnmark, Norway | 4 | 1 | 0 | 2024-01-27 |
| Astrid Hagelund | Finnmark, Norway | 3 | 1 | 0 | 2012-01-29 |
| Jens-Are Johansen | Nordland, Norway | 3 | 1 | 0 | 2022-01-01 |
| Grethe Nicolaysen | Nordland, Norway | 3 | 1 | 0 | 2020-02-01 |
| Odd Ivar Woll | Troms, Norway | 2 | 1 | 0 | 2008-05-25 |
| Johan Sirnes | Nordland, Norway | 2 | 1 | 0 | 2022-01-30 |
| Martin Andreas Ressem Målø | Trøndelag, Norway | 2 | 1 | 0 | 2023-04-21 |
| Erik Imerslund | Finnmark, Norway | 1 | 1 | 0 | 2011-05-08 |
| Kristin Wulff | Trøndelag, Norway | 1 | 1 | 0 | 2010-01-30 |
| Knut Gamst | Finnmark, Norway | 1 | 1 | 0 | 2011-02-09 |
| Steve Saltermark | Nordland, Norway | 1 | 1 | 0 | 2021-01-27 |
| Britt Jenssen | Troms, Norway | 1 | 1 | 0 | 2016-06-01 |
| randi guldbrandsen | Finnmark, Norway | 1 | 1 | 0 | 2014-01-26 |
| Robert Walker | Nordland, Norway | 1 | 1 | 0 | 2014-01-25 |
| Wenche Poppe | Troms, Norway | 1 | 1 | 0 | 2021-05-18 |
| Anna Nilsen | Finnmark, Norway | 1 | 1 | 1 | 2014-04-23 |
| Eivind Smørvik | Nordland, Norway | 1 | 1 | 0 | 2015-01-25 |
| UiT - Institutt for lærerutdanning og pedagogikk | Troms, Norway | 1 | 1 | 0 | 2016-05-23 |
| Anita Larsen Henstein | Nordland, Norway | 1 | 1 | 0 | 2022-01-29 |
| Preben Storeng Pedersen | Nordland, Norway | 1 | 1 | 0 | 2023-01-29 |
| Eskil Krey | Nordland, Norway | 1 | 1 | 0 | 2019-05-03 |
| Antti Rissanen | Finnmark, Norway | 1 | 1 | 0 | 2020-01-25 |
| Anne Marie Bøtun Øyri | Vestland, Norway | 1 | 1 | 0 | 2021-02-01 |
| Gro Hege Olsen Heløe | Troms, Norway | 1 | 1 | 0 | 2023-02-04 |
| Hadsel videregående skole/Stokmarknes | Nordland, Norway | 1 | 1 | 0 | 2019-04-05 |
| Birgit Moen Evensen | Nordland, Norway | 1 | 1 | 0 | 2024-02-04 |
| Akkarfjord oppvekstsenter | Finnmark, Norway | 1 | 1 | 0 | 2007-04-30 |
| Unni R. Bjerke Gamst | Troms, Norway | 1 | 1 | 0 | 2020-01-26 |
| christer skogland | Rogaland, Norway | 1 | 1 | 0 | 2005-04-24 |
| utsira fuglestasjon | Rogaland, Norway | 1 | 1 | 0 | 2011-01-26 |
| Oddvar Heggøy | Vestland, Norway | 1 | 1 | 0 | 2016-01-30 |
| Morten Brandt | Vestfold, Norway | 1 | 1 | 0 | 2019-01-28 |
| Pascale Baudonnel | Vestland, Norway | 1 | 1 | 0 | 2010-05-03 |
| Silje Skrede | Møre og Romsdal, Norway | 1 | 1 | 0 | 2016-02-27 |
| John Skartveit | Vestland, Norway | 1 | 1 | 0 | 2010-12-27 |