Site: Bjørkaren
| Species | Scientific name | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brambling | Fringilla montifringilla | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||
| Blue Tit | Cyanistes caeruleus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Chaffinch | Fringilla coelebs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||
| Eurasian Red Squirrel | Sciurus vulgaris | 1 | |||||||||||||||
| Mew Gull | Larus canus | 1 | 1 | ||||||||||||||
| Great Spotted Woodpecker | Dendrocopos major | 1 | |||||||||||||||
| Winter Wren | Troglodytes troglodytes | 1 | |||||||||||||||
| Willow Tit | Poecile montanus | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||||
| European Greenfinch | Chloris chloris | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Eurasian Siskin | Spinus spinus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Herring Gull | Larus argentatus | 1 | 1 | 1 | 1 | 1 | |||||||||||
| Mealy Redpoll | Acanthis flammea | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
| House Sparrow | Passer domesticus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||
| Fieldfare | Turdus pilaris | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
| White-tailed Eagle | Haliaeetus albicilla | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||||
| White-backed Woodpecker | Dendrocopos leucotos | 1 | |||||||||||||||
| Northern Goshawk | Accipiter gentilis | 1 | |||||||||||||||
| Cat | Felis catus | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||||
| Tawny Owl | Strix aluco | 1 | 1 | 1 | 1 | ||||||||||||
| Hawfinch | Coccothraustes coccothraustes | 1 | 1 | 1 | |||||||||||||
| Great Tit | Parus major | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Golden Eagle | Aquila chrysaetos | 1 | |||||||||||||||
| Hooded Crow | Corvus cornix | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||
| Marsh Tit | Poecile palustris | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| Blackcap | Sylvia atricapilla | 1 | |||||||||||||||
| Eurasian Jay | Garrulus glandarius | 1 | 1 | 1 | 1 | 1 | |||||||||||
| Eurasian Tree Sparrow | Passer montanus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
| Common Raven | Corvus corax | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
| Robin | Erithacus rubecula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||
| Eurasian Magpie | Pica pica | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| Nuthatch | Sitta europaea | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Eurasian Sparrowhawk | Accipiter nisus | 1 | 1 | 1 | |||||||||||||
| European Goldfinch | Carduelis carduelis | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
| Coal Tit | Periparus ater | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| Common Blackbird | Turdus merula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Eurasian Treecreeper | Certhia familiaris | 1 | 1 |
