Phylloscopus trochilus (Willow Warbler)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Trean | Agder, Norway | 6 | 1 | 0 | 2018-04-22 | |
| Tresfjord | Møre og Romsdal, Norway | 2 | 1 | 0 | 2019-04-28 | |
| Trollheimen | Trøndelag, Norway | 9 | 1 | 0 | 2016-05-09 | |
| Trømborgfjella, ved Langgard | Østfold, Norway | 1 | 1 | 0 | 2022-05-01 | |
| Turområde, Konnerud,1-3 km fra min bolig | Buskerud, Norway | 2 | 1 | 0 | 2015-05-09 | |
| Turøy | Vestland, Norway | 1 | 1 | 0 | 2006-04-30 | |
| Tuvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2011-05-19 | |
| Tylldalen | Innlandet, Norway | 1 | 1 | 0 | 2012-05-16 | |
| Tønsnes | Troms, Norway | 10 | 1 | 0 | 2017-06-05 | |
| Tårnbyveien Nord Borettslag | Akershus, Norway | 1 | 1 | 0 | 2017-05-16 | |
| Tårnvik | Nordland, Norway | 1 | 1 | 0 | 2016-10-15 | |
| Ullerudåsen | Akershus, Norway | 1 | 1 | 0 | 2011-04-28 | |
| Undredal | Vestland, Norway | 1 | 1 | 1 | 2008-05-10 | |
| Ustaoset | Buskerud, Norway | 1 | 1 | 0 | 2016-06-01 | |
| Utistua Strand, 6652 Surna | Møre og Romsdal, Norway | 1 | 1 | 0 | 2017-08-20 | |
| Vadanesset 1 | Trøndelag, Norway | 6 | 1 | 0 | 2021-05-02 | |
| Vaksvik | Møre og Romsdal, Norway | 12 | 1 | 0 | 2023-05-16 | |
| Valle | Møre og Romsdal, Norway | 2 | 1 | 0 | 2016-05-05 | |
| Valvatna | Vestland, Norway | 1 | 1 | 0 | 2015-05-07 | |
| Vassmoen, Lauvøya | Trøndelag, Norway | 10 | 1 | 0 | 2023-05-28 | |
| Vatna | Vestland, Norway | 3 | 1 | 0 | 2008-04-27 | |
| Vestenga | Buskerud, Norway | 1 | 1 | 0 | 2018-04-21 | |
| Vestratjørna | Vestland, Norway | 1 | 1 | 0 | 2022-06-29 | |
| Vestre gravlund, Oslo | Oslo, Norway | 2 | 1 | 0 | 2023-05-06 | |
| Vestre Jakobselv | Finnmark, Norway | 22 | 1 | 0 | 2023-05-23 | |
| Viefjellet | Vestland, Norway | 1 | 1 | 0 | 2013-05-26 | |
| Vingill | Innlandet, Norway | 3 | 1 | 0 | 2011-05-08 | |
| Volbuvegen 151 | Innlandet, Norway | 3 | 1 | 0 | 2020-05-11 | |
| Volsdalen | Møre og Romsdal, Norway | 1 | 1 | 0 | 2009-04-30 | |
| Ytre Hamre | Vestland, Norway | 14 | 1 | 0 | 2023-05-13 | |
| Østensjø | Oslo, Norway | 1 | 1 | 0 | 2013-05-14 | |
| Øster-Hallem 30 | Trøndelag, Norway | 1 | 1 | 0 | 2017-09-15 | |
| Øvre Eidfjord | Vestland, Norway | 1 | 1 | 0 | 2007-04-27 | |
| Øvre Eidfjord | Vestland, Norway | 2 | 1 | 0 | 2006-04-28 | |
| Øvre Maudal | Rogaland, Norway | 1 | 1 | 0 | 2019-05-04 | |
| Åfossmyra 58, hage | Telemark, Norway | 1 | 1 | 0 | 2023-03-25 | |
| Ågotnes | Vestland, Norway | 1 | 1 | 0 | 2008-05-01 | |
| Årdal | Vestland, Norway | 1 | 1 | 0 | 2016-01-29 | |
| Århus gård | Telemark, Norway | 1 | 1 | 0 | 2023-02-07 |