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| Rapportør: | Bjørn Kristoffersen |
| Observatører: | bjørn kristoffersen |
| Site: | Bybrua () |
| Date: | 2023-04-01 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Wood Pigeon (Columba palumbus) | |
| Phenophase: | Arrival | 25.03.2023 |
| Art: | Wood Pigeon (Columba palumbus) | |
| Phenophase: | Birds are singing | 25.03.2023 |