Svein Olsen
| Species | Scientific name | 2019 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|
| Eurasian Siskin | Carduelis spinus | 1 | ||||
| House Sparrow | Passer domesticus | 1 | 1 | 1 | 1 | 1 |
| Great Tit | Parus major | 1 | ||||
| Black-billed Magpie | Pica pica | 1 | ||||
| Common Blackbird | Turdus merula | 1 | 1 | 1 | 1 |
Sustain.no is provided by the Norwegian Centre for Science Education
Responsible editor: Doris Jorde