Site: Skien
| Species | Scientific name | 2025 |
|---|---|---|
| Goldcrest | Regulus regulus | 1 |
| Winter Wren | Troglodytes troglodytes | 1 |
| Greylag Goose | Anser anser | 1 |
| Fieldfare | Turdus pilaris | 1 |
| White-backed Woodpecker | Dendrocopos leucotos | 1 |
| Pink-footed Goose | Anser brachyrhynchus | 1 |
| Willow Warbler | Phylloscopus trochilus | 1 |
| Eurasian Woodcock | Scolopax rusticola | 1 |
| Redwing | Turdus iliacus | 1 |
| Common Coot | Fulica atra | 1 |
| Western Capercaillie | Tetrao urogallus | 1 |
| House Martin | Delichon urbicum | 1 |
| Tree Pipit | Anthus trivialis | 1 |
