| Blue Tit (Cyanistes caeruleus) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Great Spotted Woodpecker (Dendrocopos major) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| House Sparrow (Passer domesticus) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Great Tit (Parus major) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Robin (Erithacus rubecula) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Eurasian Magpie (Pica pica) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Nuthatch (Sitta europaea) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
| Common Blackbird (Turdus merula) | | 2021-02-04 | 2021-02-04 | Østensjøvannet. (Oslo, Norway) |
Sustain.no is provided by the Norwegian Centre for Science Education