| Eurasian Magpie (Pica pica) | | 2020-01-26 | 2020-01-26 | Øvrevoll (Akershus, Norway) |  |
| Great Tit (Parus major) | | 2020-01-26 | 2020-01-26 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-26 | 2020-01-26 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2020-01-26 | 2020-01-26 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2020-01-26 | 2020-01-26 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Coal Tit (Periparus ater) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| European Starling (Sturnus vulgaris) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2019-01-27 | 2019-01-27 | Øvrevoll (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Coal Tit (Periparus ater) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Eurasian Magpie (Pica pica) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-01-28 | 2018-01-28 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Eurasian Red Squirrel (Sciurus vulgaris) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Eurasian Magpie (Pica pica) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Coal Tit (Periparus ater) | | 2017-01-29 | 2017-01-29 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Coal Tit (Periparus ater) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Eurasian Magpie (Pica pica) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2016-01-31 | 2016-01-31 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2015-01-25 | 2015-01-25 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2015-01-25 | 2015-01-25 | Øvrevoll (Akershus, Norway) | |
| Eurasian Magpie (Pica pica) | | 2015-01-25 | 2015-01-25 | Øvrevoll (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2015-01-25 | 2015-01-25 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2015-01-25 | 2015-01-25 | Øvrevoll (Akershus, Norway) | |
| Coal Tit (Periparus ater) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Great Tit (Parus major) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| House Sparrow (Passer domesticus) | | 2012-01-28 | 2012-01-28 | Øvrevoll (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2011-01-29 | 2011-01-29 | Øvrevoll (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2011-01-29 | 2011-01-29 | Øvrevoll (Akershus, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education