| Blue Tit (Cyanistes caeruleus) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) |  |
| Eurasian Magpie (Pica pica) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Robin (Erithacus rubecula) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Field vole (Microtus agrestis) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2021-02-01 | 2021-01-31 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Robin (Erithacus rubecula) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Marsh Tit (Poecile palustris) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2021-02-01 | 2021-01-30 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-02-02 | 2020-02-02 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2020-02-02 | 2020-02-01 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-02-02 | 2020-02-01 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2020-02-02 | 2020-02-01 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2020-01-30 | 2020-01-30 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2020-01-30 | 2020-01-30 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2020-01-30 | 2020-01-30 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-30 | 2020-01-30 | Ulefoss (Telemark, Norway) | |
| Eurasian Jay (Garrulus glandarius) | | 2020-01-26 | 2020-01-26 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-01-26 | 2020-01-26 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2020-01-26 | 2020-01-26 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2020-01-26 | 2020-01-25 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-26 | 2020-01-25 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2020-01-26 | 2020-01-25 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-01-26 | 2020-01-25 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Eurasian Magpie (Pica pica) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Robin (Erithacus rubecula) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2019-02-01 | 2019-01-26 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Eurasian Magpie (Pica pica) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Green Woodpecker (Picus viridis) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-01-28 | 2018-01-28 | Ulefoss (Telemark, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2018-01-28 | 2018-01-27 | Ulefoss (Telemark, Norway) | |
| Great Tit (Parus major) | | 2018-01-28 | 2018-01-27 | Ulefoss (Telemark, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2018-01-28 | 2018-01-27 | Ulefoss (Telemark, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education