Sigmund Birkeland
| Species | Scientific name | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|---|---|
| Feral Pigeon | Columba livia domestica | 1 | |||||||
| Brambling | Fringilla montifringilla | 1 | 2 | 1 | |||||
| Blue Tit | Cyanistes caeruleus | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |
| Chaffinch | Fringilla coelebs | 1 | 2 | 1 | 1 | ||||
| Eurasian Bullfinch | Pyrrhula pyrrhula | 1 | |||||||
| Mew Gull | Larus canus | 1 | |||||||
| Great Spotted Woodpecker | Dendrocopos major | 1 | 1 | 1 | |||||
| Winter Wren | Troglodytes troglodytes | 1 | |||||||
| European Greenfinch | Carduelis chloris | 1 | 2 | 1 | 1 | 1 | 1 | ||
| Eurasian Siskin | Carduelis spinus | 1 | 1 | 1 | 1 | ||||
| Herring Gull | Larus argentatus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| House Sparrow | Passer domesticus | 1 | 1 | 1 | |||||
| Fieldfare | Turdus pilaris | 1 | 1 | 1 | |||||
| Yellowhammer | Emberiza citrinella | 1 | 1 | 1 | |||||
| Jackdaw | Corvus monedula | 1 | 1 | 1 | 1 | 1 | |||
| Great Tit | Parus major | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Hooded Crow | Corvus cornix | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Blackcap | Sylvia atricapilla | 1 | |||||||
| Eurasian Tree Sparrow | Passer montanus | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Wood Pigeon | Columba palumbus | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Robin | Erithacus rubecula | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Black-billed Magpie | Pica pica | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nuthatch | Sitta europaea | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Common Blackbird | Turdus merula | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
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