| Blue Tit (Cyanistes caeruleus) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) |  |
| Nuthatch (Sitta europaea) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Black-billed Magpie (Pica pica) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Hooded Crow (Corvus cornix) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Great Tit (Parus major) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Grey-headed Woodpecker (Picus canus) | | 2021-02-01 | 2021-01-31 | Halsteinsgård (Buskerud, Norway) | |
| Common Blackbird (Turdus merula) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Willow Tit (Poecile montanus) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Treecreeper (Certhia familiaris) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Chaffinch (Fringilla coelebs) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Siskin (Carduelis spinus) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Mealy Redpoll (Carduelis flammea) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Grey-headed Woodpecker (Picus canus) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Fieldfare (Turdus pilaris) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Hedge Accentor (Prunella modularis) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Hawfinch (Coccothraustes coccothraustes) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Great Tit (Parus major) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Hooded Crow (Corvus cornix) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Robin (Erithacus rubecula) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Black-billed Magpie (Pica pica) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Nuthatch (Sitta europaea) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| European Starling (Sturnus vulgaris) | | 2017-04-16 | 2017-04-08 | Halsteinsgård (Buskerud, Norway) | |
| Great Spotted Woodpecker (Dendrocopos major) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Willow Tit (Poecile montanus) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Treecreeper (Certhia familiaris) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Nuthatch (Sitta europaea) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Black-billed Magpie (Pica pica) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Hooded Crow (Corvus cornix) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Great Tit (Parus major) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Grey-headed Woodpecker (Picus canus) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Mealy Redpoll (Carduelis flammea) | | 2017-03-10 | 2017-03-09 | Halsteinsgård (Buskerud, Norway) | |
| Black-billed Magpie (Pica pica) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| Mealy Redpoll (Carduelis flammea) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| Grey-headed Woodpecker (Picus canus) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
| Yellowhammer (Emberiza citrinella) | | 2015-12-28 | 2015-12-27 | Halsteinsgård (Buskerud, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education