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| Reporter: | Bent Christian Øhren |
| Observers: | Bent Christian Øhren |
| Site: | Brevik () |
| Date: | 2021-04-02 |
| Aktivitet: | Spring phenology |
Funn
| Species: | White Wagtail (Motacilla alba) | |
| Phenophase: | Arrival | 02.04.2021 |
| Species: | White Wagtail (Motacilla alba) | |
| Phenophase: | Birds are singing | 02.04.2021 |