| Blue Tit (Cyanistes caeruleus) | | 2024-01-30 | 2024-01-29 | Bjørke 7 (Akershus, Norway) |  |
| Black-billed Magpie (Pica pica) | | 2024-01-30 | 2024-01-29 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2024-01-30 | 2024-01-29 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2024-01-30 | 2024-01-29 | Bjørke 7 (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2024-01-30 | 2024-01-29 | Bjørke 7 (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2023-01-29 | 2023-01-28 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2023-01-29 | 2023-01-28 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2023-01-29 | 2023-01-28 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2023-01-29 | 2023-01-28 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2023-01-29 | 2023-01-28 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2022-01-30 | 2022-01-30 | Bjørke 7 (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2021-01-31 | 2021-01-30 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-01-31 | 2021-01-30 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2021-01-31 | 2021-01-30 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2021-01-31 | 2021-01-30 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2021-01-31 | 2021-01-30 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2020-01-27 | 2020-01-25 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2019-01-27 | 2019-01-26 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2019-01-27 | 2019-01-26 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2019-01-27 | 2019-01-26 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2019-01-27 | 2019-01-26 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2019-01-27 | 2019-01-26 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2018-01-28 | 2018-01-28 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2018-01-28 | 2018-01-28 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2018-01-28 | 2018-01-28 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2018-01-28 | 2018-01-28 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-01-28 | 2018-01-28 | Bjørke 7 (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2017-01-30 | 2017-01-29 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2017-01-30 | 2017-01-29 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2017-01-30 | 2017-01-29 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2017-01-30 | 2017-01-29 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2017-01-30 | 2017-01-29 | Bjørke 7 (Akershus, Norway) | |
| Great Tit (Parus major) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Bohemian Waxwing (Bombycilla garrulus) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2017-01-28 | 2017-01-28 | Bjørke 7 (Akershus, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education