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| Rapportør: | Bent Christian Øhren |
| Observatører: | Bent Christian Øhren |
| Site: | Bjørndalen () |
| Date: | 2011-04-23 |
| Aktivitet: | Spring phenology |
Funn
| Art: | White Wagtail (Motacilla alba) | |
| Phenophase: | Arrival | 19.04.2011 |
| Art: | Pied Flycatcher (Ficedula hypoleuca) | |
| Phenophase: | Arrival | 23.04.2011 |