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| Rapportør: | Geir Stian Vrålstad |
| Observatører: | Geir Stian Vrålstad |
| Site: | Hola () |
| Date: | 2021-03-31 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Fieldfare (Turdus pilaris) | |
| Phenophase: | Arrival | 30.03.2021 |
| Art: | Common Goldeneye (Bucephala clangula) | |
| Phenophase: | Arrival | 30.03.2021 |
| Art: | Mallard (Anas platyrhynchos) | |
| Phenophase: | Arrival | 30.03.2021 |
| Art: | Common Blackbird (Turdus merula) | |
| Phenophase: | Birds are singing | 24.03.2021 |