| Blue Tit (Cyanistes caeruleus) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) |  |
| European Greenfinch (Carduelis chloris) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Robin (Erithacus rubecula) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2021-02-01 | 2021-02-01 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2020-02-03 | 2020-02-03 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2020-02-03 | 2020-02-03 | Hellerud (Oslo, Norway) | |
| Eurasian Siskin (Carduelis spinus) | | 2020-02-02 | 2020-01-26 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2020-02-02 | 2020-01-26 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2020-02-02 | 2020-01-26 | Hellerud (Oslo, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2020-02-02 | 2020-01-26 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-02-02 | 2020-01-26 | Hellerud (Oslo, Norway) | |
| Goldcrest (Regulus regulus) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Coal Tit (Periparus ater) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2019-01-31 | 2019-01-24 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2018-02-04 | 2018-01-28 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-02-04 | 2018-01-28 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2018-02-04 | 2018-01-28 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2018-02-04 | 2018-01-28 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2018-02-04 | 2018-01-28 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2017-01-31 | 2017-01-30 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2017-01-31 | 2017-01-30 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2017-01-31 | 2017-01-30 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-01-31 | 2017-01-30 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2016-02-01 | 2016-02-01 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2016-02-01 | 2016-02-01 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2016-02-01 | 2016-02-01 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2015-01-24 | 2015-01-24 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2015-01-24 | 2015-01-24 | Hellerud (Oslo, Norway) | |
| Coal Tit (Periparus ater) | | 2015-01-24 | 2015-01-24 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2015-01-24 | 2015-01-24 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2015-01-24 | 2015-01-24 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| Coal Tit (Periparus ater) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| Nuthatch (Sitta europaea) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2013-01-27 | 2013-01-27 | Hellerud (Oslo, Norway) | |
| House Sparrow (Passer domesticus) | | 2011-01-30 | 2011-01-30 | Hellerud (Oslo, Norway) | |
| Common Blackbird (Turdus merula) | | 2011-01-30 | 2011-01-30 | Hellerud (Oslo, Norway) | |
| Black-billed Magpie (Pica pica) | | 2011-01-30 | 2011-01-30 | Hellerud (Oslo, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2011-01-30 | 2011-01-30 | Hellerud (Oslo, Norway) | |
| Great Tit (Parus major) | | 2011-01-30 | 2011-01-30 | Hellerud (Oslo, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education