| Great Tit (Parus major) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) |  |
| House Sparrow (Passer domesticus) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Robin (Erithacus rubecula) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2023-01-30 | 2023-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| House Sparrow (Passer domesticus) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Herring Gull (Larus argentatus) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Feral Pigeon (Columba livia domestica) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Nuthatch (Sitta europaea) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Robin (Erithacus rubecula) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Common Raven (Corvus corax) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Great Tit (Parus major) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Great Tit (Parus major) | | 2022-01-30 | 2022-01-30 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| House Sparrow (Passer domesticus) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Great Tit (Parus major) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Robin (Erithacus rubecula) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2021-01-31 | 2021-01-31 | Ollebakken 13 (Vestfold, Norway) | |
| Robin (Erithacus rubecula) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Feral Pigeon (Columba livia domestica) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Siskin (Carduelis spinus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Herring Gull (Larus argentatus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| House Sparrow (Passer domesticus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Great Tit (Parus major) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Common Raven (Corvus corax) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Sparrowhawk (Accipiter nisus) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2020-01-26 | 2020-01-26 | Ollebakken 13 (Vestfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Robin (Erithacus rubecula) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Great Tit (Parus major) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| House Sparrow (Passer domesticus) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Feral Pigeon (Columba livia domestica) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-01-31 | 2018-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-01-30 | 2017-01-29 | Ollebakken 13 (Vestfold, Norway) | |
| House Sparrow (Passer domesticus) | | 2017-01-30 | 2017-01-29 | Ollebakken 13 (Vestfold, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education