Phylloscopus collybita (Chiffchaff)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| NOF Hordaland | Vestland, Norway | 57 | 1 | 0 | 2008-05-11 |
| Stryn vidaregåande skule | Vestland, Norway | 33 | 1 | 0 | 2022-05-04 |
| Meldal Ungdomsskole/løkken barneskole | Trøndelag, Norway | 27 | 1 | 0 | 2016-04-22 |
| Frøydis Mathiesen | Buskerud, Norway | 23 | 1 | 0 | 2021-05-13 |
| Ottar Sætre | Møre og Romsdal, Norway | 20 | 1 | 0 | 2023-04-15 |
| Kjell Hammersland | Rogaland, Norway | 20 | 1 | 0 | 2019-04-08 |
| Kurt Erland | Vestland, Norway | 16 | 1 | 0 | 2015-06-03 |
| Gunnar Hamre | Vestland, Norway | 14 | 1 | 0 | 2021-04-24 |
| Arne Kjell Askeland | Rogaland, Norway | 13 | 1 | 0 | 2023-04-09 |
| Frode Falkenberg | Vestland, Norway | 12 | 1 | 1 | 2014-09-28 |
| Eli Brattland | Nordland, Norway | 11 | 1 | 0 | 2018-04-28 |
| Trine Lise Fjelldal | Møre og Romsdal, Norway | 10 | 1 | 0 | 2015-04-28 |
| Olaf Hunsdal | Troms, Norway | 10 | 1 | 0 | 2014-04-29 |
| Per Ole Lunden | Innlandet, Norway | 9 | 1 | 0 | 2021-05-10 |
| Nils Battin | Agder, Norway | 9 | 1 | 0 | 2024-04-08 |
| Åsmund Berg | Innlandet, Norway | 9 | 1 | 8 | 2021-09-06 |
| Rolf Eric Seljevold | Nordland, Norway | 8 | 1 | 0 | 2021-05-07 |
| Aina Bente Jonsdatter Strand | Innlandet, Norway | 7 | 1 | 0 | 2014-04-13 |
| Richard | Akershus, Norway | 7 | 1 | 0 | 2024-04-13 |
| Unni R. Bjerke Gamst | Troms, Norway | 7 | 1 | 0 | 2008-05-10 |
| Per Torgersen | Akershus, Norway | 6 | 1 | 0 | 2024-04-12 |
| Maren Erland | Vestland, Norway | 6 | 1 | 0 | 2013-08-13 |
| Finneidfjord skole | Nordland, Norway | 6 | 1 | 0 | 2018-04-14 |
| Per Ivar Høvring | Akershus, Norway | 6 | 1 | 0 | 2024-04-16 |
| Bjørg Vaage | Akershus, Norway | 5 | 1 | 0 | 2023-06-07 |
| Frede Thorsheim | Vestland, Norway | 5 | 1 | 0 | 2011-05-09 |
| Victor Boullet | Akershus, Norway | 5 | 1 | 0 | 2018-07-29 |
| Fredrik Pettersen | Innlandet, Norway | 4 | 1 | 0 | 2021-06-06 |
| Charlotte Bakke | Telemark, Norway | 4 | 1 | 0 | 2019-04-10 |
| Hjalmar Larsen | Troms, Norway | 4 | 1 | 0 | 2022-05-29 |
| Trond Helge Jensen | Troms, Norway | 4 | 1 | 0 | 2019-10-20 |
| Kristine Landsem | Trøndelag, Norway | 3 | 1 | 0 | 2012-05-08 |
| Tylldalen skole | Innlandet, Norway | 3 | 1 | 0 | 2012-04-24 |
| Heikki Fjelldal | Akershus, Norway | 3 | 1 | 0 | 2024-04-16 |
| Kim-Laurits Gunnerød | Vestfold, Norway | 3 | 1 | 0 | 2024-04-08 |
| Gunn-T. Høgstad | Troms, Norway | 3 | 1 | 0 | 2018-04-19 |
| Kjølnes ungdomsskole | Telemark, Norway | 3 | 1 | 0 | 2008-04-24 |
| Bent Christian Øhren | Vestfold, Norway | 3 | 1 | 0 | 2016-04-05 |
| Jørgen Grefstad | Trøndelag, Norway | 3 | 1 | 0 | 2013-04-26 |
| Daniel Rosenstiel | Møre og Romsdal, Norway | 3 | 1 | 0 | 2011-04-21 |
| Aage Kvendseth | Vestland, Norway | 3 | 1 | 0 | 2021-05-16 |
| Lena-Valle videregående skole - Avd Lena | Innlandet, Norway | 2 | 1 | 0 | 2021-04-25 |
| Knappskog skule | Vestland, Norway | 2 | 1 | 0 | 2011-04-18 |
| Nyborg skole | Trøndelag, Norway | 2 | 1 | 0 | 2003-04-19 |
| Bjørn Wang | Møre og Romsdal, Norway | 2 | 1 | 0 | 2006-04-18 |
| Solfrid Helene Lien Langmo | Trøndelag, Norway | 2 | 1 | 0 | 2022-04-18 |
| John Sandve | Akershus, Norway | 2 | 1 | 0 | 2007-04-25 |
| Nordisk Naturskule Eidfjord | Vestland, Norway | 2 | 1 | 0 | 2007-05-07 |
| Åshild Svenke | Trøndelag, Norway | 2 | 1 | 0 | 2009-04-09 |
| Terje Bjerkan | Trøndelag, Norway | 2 | 1 | 0 | 2013-01-27 |