Site: Vollen
| Species | Scientific name | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brambling | Fringilla montifringilla | 1 | ||||||||||||
| Blue Tit | Cyanistes caeruleus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 1 | 1 | 1 | 1 | |||||||||
| Eurasian Red Squirrel | Sciurus vulgaris | 1 | 1 | |||||||||||
| Great Spotted Woodpecker | Dendrocopos major | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| European Greenfinch | Carduelis chloris | 1 | 1 | 1 | 1 | 1 | 1 | |||||||
| Eurasian Siskin | Carduelis spinus | 1 | 1 | |||||||||||
| Herring Gull | Larus argentatus | 1 | 1 | |||||||||||
| Mealy Redpoll | Carduelis flammea | 1 | 1 | 1 | 1 | |||||||||
| House Sparrow | Passer domesticus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Jackdaw | Corvus monedula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||
| Great Tit | Parus major | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Hooded Crow | Corvus cornix | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Eurasian Tree Sparrow | Passer montanus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Wood Pigeon | Columba palumbus | 1 | 1 | |||||||||||
| Fox | Vulpes vulpes | 1 | ||||||||||||
| Robin | Erithacus rubecula | 1 | 1 | 1 | 1 | 1 | 1 | |||||||
| Roe Deer | Capreolus capreolus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||
| Eurasian Magpie | Pica pica | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nuthatch | Sitta europaea | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||
| European Goldfinch | Carduelis carduelis | 1 | 1 | 1 | 1 | |||||||||
| Mallard | Anas platyrhynchos | 1 | 1 | 1 | ||||||||||
| Common Blackbird | Turdus merula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
