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| Rapportør: | Per Torgersen |
| Observatører: | Per Torgersen |
| Site: | Bjørkelangen () |
| Date: | 2017-04-04 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Common Buzzard (Buteo buteo) | |
| Phenophase: | Arrival | 03.04.2017 |
| Art: | Song Thrush (Turdus philomelos) | |
| Phenophase: | Arrival | 03.04.2017 |
| Art: | Song Thrush (Turdus philomelos) | |
| Phenophase: | Birds are singing | 03.04.2017 |
| Art: | Black Grouse (Tetrao tetrix) | |
| Phenophase: | Arrival | 03.04.2017 |
| Art: | Black Grouse (Tetrao tetrix) | |
| Merknad: | Årets første orreleik | |
| Phenophase: | Birds are singing | 03.04.2017 |
| Art: | Brimstone (Gonepteryx rhamni) | |
| Phenophase: | Adult | 03.04.2017 |
| Art: | Skogmaur (Formica) | |
| Phenophase: | Adult | 03.04.2017 |