| Black-billed Magpie (Pica pica) | | 2020-01-28 | 2020-01-24 | Skjelsbu (Østfold, Norway) |  |
| Nuthatch (Sitta europaea) | | 2020-01-28 | 2020-01-24 | Skjelsbu (Østfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2020-01-28 | 2020-01-24 | Skjelsbu (Østfold, Norway) | |
| Eurasian Red Squirrel (Sciurus vulgaris) | | 2020-01-28 | 2020-01-24 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2020-01-28 | 2020-01-24 | Skjelsbu (Østfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Eurasian Red Squirrel (Sciurus vulgaris) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Nuthatch (Sitta europaea) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Hooded Crow (Corvus cornix) | | 2019-01-26 | 2019-01-22 | Skjelsbu (Østfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Hooded Crow (Corvus cornix) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Nuthatch (Sitta europaea) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Crested Tit (Lophophanes cristatus) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Eurasian Red Squirrel (Sciurus vulgaris) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2018-01-31 | 2018-01-30 | Skjelsbu (Østfold, Norway) | |
| Crested Tit (Lophophanes cristatus) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Eurasian Red Squirrel (Sciurus vulgaris) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Nuthatch (Sitta europaea) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2015-02-07 | 2015-01-30 | Skjelsbu (Østfold, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Common Blackbird (Turdus merula) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Eurasian Sparrowhawk (Accipiter nisus) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Black-billed Magpie (Pica pica) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Hooded Crow (Corvus cornix) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2014-02-01 | 2014-01-31 | Skjelsbu (Østfold, Norway) | |
| Great Tit (Parus major) | | 2012-01-31 | 2012-01-28 | Skjelsbu (Østfold, Norway) | |
| Nuthatch (Sitta europaea) | | 2012-01-31 | 2012-01-28 | Skjelsbu (Østfold, Norway) | |
| Eurasian Treecreeper (Certhia familiaris) | | 2012-01-31 | 2012-01-28 | Skjelsbu (Østfold, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2012-01-31 | 2012-01-28 | Skjelsbu (Østfold, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2012-01-31 | 2012-01-28 | Skjelsbu (Østfold, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education