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| Rapportør: | Per Torgersen |
| Observatører: | Per Torgersen |
| Site: | Bjørkelangen () |
| Date: | 2017-04-17 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Northern Goshawk (Accipiter gentilis) | |
| Phenophase: | Arrival | 17.04.2017 |
| Art: | Tengmalm's Owl (Aegolius funereus) | |
| Phenophase: | Arrival | 14.04.2017 |
| Art: | Tengmalm's Owl (Aegolius funereus) | |
| Phenophase: | Birds are singing | 14.04.2017 |