Site: Bjørktjønna
| Species | Scientific name | 2010 | 2013 |
|---|---|---|---|
| Blue Tit | Cyanistes caeruleus | 1 | |
| Willow Tit | Poecile montanus | 1 | 1 |
| Great Tit | Parus major | 1 | 1 |
| Coal Tit | Periparus ater | 1 | |
| Crested Tit | Lophophanes cristatus | 1 | 1 |
Sustain.no is provided by the Norwegian Centre for Science Education
Responsible editor: Doris Jorde