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| Rapportør: | Gunnar Hamre |
| Observatører: | Gunnar Hamre |
| Site: | Ytre Hamre () |
| Date: | 2023-05-13 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Willow Warbler (Phylloscopus trochilus) | |
| Antall: | 1 | |
| Phenophase: | Arrival | 11.05.2023 |
| Art: | Willow Warbler (Phylloscopus trochilus) | |
| Phenophase: | Birds are singing | 11.05.2023 |