Site: Tiurleiken 5, Vikersund
| Species | Scientific name | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|
| Feral Pigeon | Columba livia domestica | 1 | 1 | ||||
| Blue Tit | Cyanistes caeruleus | 1 | 1 | 1 | 1 | 1 | 1 |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 1 | 1 | 1 | 1 | ||
| Great Spotted Woodpecker | Dendrocopos major | 1 | 1 | 1 | 1 | 1 | 1 |
| Goldcrest | Regulus regulus | 1 | 1 | 1 | 1 | ||
| Common Crossbill | Loxia curvirostra | 1 | |||||
| European Greenfinch | Carduelis chloris | 1 | 1 | 1 | 1 | 1 | |
| Eurasian Siskin | Carduelis spinus | 1 | 1 | ||||
| House Sparrow | Passer domesticus | 1 | 1 | 1 | 1 | 1 | |
| Yellowhammer | Emberiza citrinella | 1 | 1 | 1 | |||
| Black-headed Gull | Chroicocephalus ridibundus | 1 | |||||
| Great Tit | Parus major | 1 | 1 | 1 | 1 | 1 | 1 |
| Hooded Crow | Corvus cornix | 1 | |||||
| Nutcracker | Nucifraga caryocatactes | 1 | |||||
| Eurasian Tree Sparrow | Passer montanus | 1 | 1 | 1 | 1 | ||
| Black-billed Magpie | Pica pica | 1 | 1 | 1 | 1 | 1 | |
| Snow bunting | Plectrophenax nivalis | 1 | |||||
| Nuthatch | Sitta europaea | 1 | 1 | 1 | |||
| Coal Tit | Periparus ater | 1 | 1 | 1 | 1 |
Sustain.no is provided by the Norwegian Centre for Science Education