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| Rapportør: | Øyvind Hansen |
| Observatører: | Øyvind Hansen |
| Site: | Sollia () |
| Date: | 2020-05-25 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Barn Swallow (Hirundo rustica) | |
| Phenophase: | Arrival | 25.05.2020 |
| Art: | Barn Swallow (Hirundo rustica) | |
| Phenophase: | Birds are singing | 25.05.2020 |
| Art: | Barn Swallow (Hirundo rustica) | |
| Phenophase: | Nest building | 25.05.2020 |