Site: Refsland
| Species | Scientific name | 2017 | 2018 | 2019 | 2021 |
|---|---|---|---|---|---|
| Blue Tit | Cyanistes caeruleus | 5 | 1 | 2 | 1 |
| Eurasian Bullfinch | Pyrrhula pyrrhula | 4 | 1 | 1 | |
| Eurasian Red Squirrel | Sciurus vulgaris | 1 | 1 | 1 | 1 |
| Great Spotted Woodpecker | Dendrocopos major | 1 | |||
| Willow Tit | Poecile montanus | 5 | 1 | 2 | 1 |
| Green Woodpecker | Picus viridis | 1 | |||
| Great Tit | Parus major | 5 | 1 | 2 | 1 |
| Pine Grosbeak | Pinicola enucleator | 1 | |||
| Nutcracker | Nucifraga caryocatactes | 2 | |||
| Eurasian Jay | Garrulus glandarius | 2 | 1 | ||
| Nuthatch | Sitta europaea | 5 | 1 | 2 | 1 |
| Coal Tit | Periparus ater | 3 | 1 | 1 |
Sustain.no is provided by the Norwegian Centre for Science Education