Site: Vollen
| Species | Scientific name | 2017 | 2018 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|
| Brambling | Fringilla montifringilla | 1 | 1 | 1 | ||
| Blue Tit | Cyanistes caeruleus | 1 | 1 | 1 | 1 | 1 |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 1 | 1 | 1 | 1 | 1 |
| Eurasian Red Squirrel | Sciurus vulgaris | 1 | 1 | 1 | 1 | 1 |
| Mew Gull | Larus canus | 1 | 1 | 1 | 1 | 1 |
| Great Spotted Woodpecker | Dendrocopos major | 1 | 1 | 1 | 1 | |
| European Greenfinch | Carduelis chloris | 1 | 1 | 1 | 1 | 1 |
| Eurasian Siskin | Carduelis spinus | 1 | 1 | |||
| Green Woodpecker | Picus viridis | 1 | ||||
| Herring Gull | Larus argentatus | 1 | ||||
| Mealy Redpoll | Carduelis flammea | 1 | ||||
| House Sparrow | Passer domesticus | 1 | ||||
| Yellowhammer | Emberiza citrinella | 1 | 1 | 1 | ||
| Jackdaw | Corvus monedula | 1 | 1 | |||
| Hawfinch | Coccothraustes coccothraustes | 1 | 1 | 1 | 1 | 1 |
| Great Tit | Parus major | 1 | 1 | 1 | 1 | 1 |
| Hooded Crow | Corvus cornix | 1 | 1 | 1 | 1 | |
| Nutcracker | Nucifraga caryocatactes | 1 | ||||
| Eurasian Jay | Garrulus glandarius | 1 | 1 | 1 | 1 | |
| Eurasian Tree Sparrow | Passer montanus | 1 | 1 | 1 | 1 | 1 |
| Wood Pigeon | Columba palumbus | 1 | ||||
| Robin | Erithacus rubecula | 1 | 1 | |||
| Roe Deer | Capreolus capreolus | 1 | ||||
| Bohemian Waxwing | Bombycilla garrulus | 1 | ||||
| Eurasian Magpie | Pica pica | 1 | 1 | 1 | 1 | 1 |
| Nuthatch | Sitta europaea | 1 | 1 | 1 | 1 | 1 |
| Eurasian Sparrowhawk | Accipiter nisus | 1 | ||||
| European Goldfinch | Carduelis carduelis | 1 | 1 | 1 | 1 | 1 |
| Common Blackbird | Turdus merula | 1 | 1 | 1 | 1 | 1 |
