Birger Knudsen
| Species | Scientific name | 2013 | 2023 | 2024 |
|---|---|---|---|---|
| Mew Gull | Larus canus | 1 | ||
| Rough-legged Buzzard | Buteo lagopus | 1 | ||
| European Greenfinch | Carduelis chloris | 1 | ||
| Greylag Goose | Anser anser | 1 | ||
| House Sparrow | Passer domesticus | 1 | ||
| Great Tit | Parus major | 2 | ||
| White Wagtail | Motacilla alba | 1 | ||
| Barn Swallow | Hirundo rustica | 1 | ||
| Arctic Tern | Sterna paradisaea | 1 | ||
| Ringed Plover | Charadrius hiaticula | 1 | ||
| Whooper Swan | Cygnus cygnus | 1 | ||
| Whimbrel | Numenius phaeopus | 1 | ||
| Snow bunting | Plectrophenax nivalis | 1 | 1 | |
| Wheatear | Oenanthe oenanthe | 1 | ||
| Eurasian Oystercatcher | Haematopus ostralegus | 1 | ||
| Arctic Skua | Stercorarius parasiticus | 1 |
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