Site: Grefsen alle 22
| Species | Scientific name | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brambling | Fringilla montifringilla | 6 | 5 | 9 | 2 | 5 | 1 | 5 | 5 | 1 | |||
| Blue Tit | Cyanistes caeruleus | 10 | 18 | 13 | 31 | 14 | 14 | 14 | 19 | 8 | 4 | 6 | 7 |
| Chaffinch | Fringilla coelebs | 2 | 1 | 5 | 11 | 3 | 3 | 1 | 6 | 3 | 1 | 1 | |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 9 | 14 | 8 | 26 | 12 | 12 | 10 | 15 | 3 | 3 | 5 | 5 |
| Eurasian Red Squirrel | Sciurus vulgaris | 3 | 6 | 1 | 3 | 3 | 2 | 4 | |||||
| Mew Gull | Larus canus | 1 | 1 | 1 | 1 | 2 | 5 | ||||||
| Great Spotted Woodpecker | Dendrocopos major | 4 | 5 | 7 | 12 | 11 | 8 | 2 | 2 | 3 | 2 | ||
| European Greenfinch | Carduelis chloris | 10 | 16 | 13 | 30 | 12 | 14 | 14 | 18 | 6 | 3 | 5 | 5 |
| Eurasian Siskin | Carduelis spinus | 1 | 8 | 2 | 11 | 8 | 5 | 2 | 2 | 3 | 1 | ||
| Mealy Redpoll | Carduelis flammea | 8 | 4 | 3 | 3 | 4 | 8 | 3 | 2 | 2 | |||
| House Sparrow | Passer domesticus | 6 | 5 | 3 | 18 | 14 | 14 | 10 | 18 | 8 | 4 | 6 | 6 |
| Fieldfare | Turdus pilaris | 4 | 7 | 5 | 9 | 4 | 1 | 4 | 5 | 1 | 2 | ||
| Yellowhammer | Emberiza citrinella | 6 | 3 | 12 | 2 | ||||||||
| Garden Warbler | Sylvia borin | 1 | |||||||||||
| Mountain hare | Lepus timidus | 2 | 1 | ||||||||||
| Northern Goshawk | Accipiter gentilis | 1 | |||||||||||
| Hedge Accentor | Prunella modularis | 1 | |||||||||||
| Cat | Felis catus | 7 | 6 | 5 | 6 | 8 | 7 | 4 | 4 | 3 | |||
| Hawfinch | Coccothraustes coccothraustes | 3 | 3 | 4 | 2 | 10 | 9 | 5 | 6 | 4 | 3 | 1 | |
| Great Tit | Parus major | 10 | 18 | 13 | 30 | 14 | 14 | 14 | 18 | 8 | 4 | 6 | 6 |
| Hooded Crow | Corvus cornix | 1 | 7 | 1 | 10 | 7 | 3 | 4 | 13 | 6 | 4 | 5 | 6 |
| White Wagtail | Motacilla alba | 2 | 2 | 1 | |||||||||
| Willow Warbler | Phylloscopus trochilus | 2 | 1 | ||||||||||
| Blackcap | Sylvia atricapilla | 2 | 1 | 6 | 7 | 3 | 3 | 1 | 1 | ||||
| Lesser Whitethroat | Sylvia curruca | 1 | |||||||||||
| Nutcracker | Nucifraga caryocatactes | 1 | |||||||||||
| Eurasian Jay | Garrulus glandarius | 2 | |||||||||||
| Eurasian Tree Sparrow | Passer montanus | 10 | 18 | 13 | 30 | 14 | 14 | 14 | 18 | 8 | 4 | 6 | 6 |
| Wood Pigeon | Columba palumbus | 4 | 1 | 7 | 5 | 3 | 4 | 10 | 3 | 3 | 1 | 2 | |
| Ring Ouzel | Turdus torquatus | 1 | |||||||||||
| Robin | Erithacus rubecula | 6 | 7 | 10 | 7 | 11 | 7 | 12 | 6 | 3 | 4 | 6 | |
| Redwing | Turdus iliacus | 1 | |||||||||||
| Roe Deer | Capreolus capreolus | 7 | 10 | 8 | 8 | 3 | 1 | 4 | 1 | ||||
| Bohemian Waxwing | Bombycilla garrulus | 4 | 3 | 1 | 1 | 2 | |||||||
| Eurasian Magpie | Pica pica | 9 | 17 | 13 | 30 | 14 | 13 | 14 | 18 | 8 | 4 | 6 | 6 |
| Nuthatch | Sitta europaea | 6 | 6 | 11 | 13 | 13 | 10 | 14 | 15 | 7 | 4 | 6 | 6 |
| Eurasian Sparrowhawk | Accipiter nisus | 2 | 2 | 2 | 3 | 4 | 1 | 5 | 4 | 2 | 2 | 1 | 1 |
| European Goldfinch | Carduelis carduelis | 6 | 2 | 2 | 1 | 5 | 5 | 7 | 3 | 3 | 1 | 1 | 1 |
| European Starling | Sturnus vulgaris | 1 | 1 | 3 | 2 | 5 | 4 | 1 | 1 | 2 | |||
| Pied Flycatcher | Ficedula hypoleuca | 1 | |||||||||||
| Coal Tit | Periparus ater | 8 | 4 | 3 | 8 | 9 | 7 | 4 | 4 | 2 | |||
| Common Blackbird | Turdus merula | 10 | 18 | 10 | 29 | 14 | 14 | 13 | 18 | 8 | 4 | 6 | 6 |
| Eurasian Collared Dove | Streptopelia decaocto | 7 | 10 | 9 | 29 | 14 | 13 | 13 | 18 | 8 | 4 | 6 | 5 |
