Site: Olsrud
| Species | Scientific name | 2016 | 2018 | 2021 |
|---|---|---|---|---|
| Feral Pigeon | Columba livia domestica | 1 | ||
| Brambling | Fringilla montifringilla | 5 | 1 | |
| Blue Tit | Cyanistes caeruleus | 11 | 2 | 1 |
| Chaffinch | Fringilla coelebs | 2 | ||
| Lesser Redpoll | Carduelis cabaret | 4 | 2 | |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 11 | 2 | 1 |
| Eurasian Red Squirrel | Sciurus vulgaris | 3 | 1 | |
| Common Pheasant | Phasianus colchicus | 2 | 2 | 1 |
| Great Spotted Woodpecker | Dendrocopos major | 11 | 2 | 1 |
| Willow Tit | Poecile montanus | 3 | 1 | |
| European Greenfinch | Carduelis chloris | 7 | 1 | 1 |
| Mealy Redpoll | Carduelis flammea | 4 | 2 | |
| Yellowhammer | Emberiza citrinella | 2 | 1 | |
| Hedge Accentor | Prunella modularis | 1 | ||
| Jackdaw | Corvus monedula | 1 | 1 | |
| Cat | Felis catus | 6 | 2 | 1 |
| Great Tit | Parus major | 11 | 2 | 1 |
| Hooded Crow | Corvus cornix | 7 | 2 | |
| Eurasian Jay | Garrulus glandarius | 1 | 1 | |
| Eurasian Tree Sparrow | Passer montanus | 11 | 2 | 1 |
| Eurasian Magpie | Pica pica | 11 | 2 | 1 |
| Nuthatch | Sitta europaea | 10 | 1 | 1 |
| European Goldfinch | Carduelis carduelis | 8 | 2 | 1 |
| Coal Tit | Periparus ater | 5 | 1 | |
| Common Blackbird | Turdus merula | 2 |
