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| Rapportør: | Kristiane Dedichen Falck |
| Observatører: | Kristiane Dedichen Falck |
| Site: | Hellerudtoppen () |
| Date: | 2013-04-19 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Chaffinch (Fringilla coelebs) | |
| Phenophase: | Arrival | 16.04.2013 |
| Art: | Robin (Erithacus rubecula) | |
| Phenophase: | Arrival | 16.04.2013 |
| Art: | European Starling (Sturnus vulgaris) | |
| Phenophase: | Arrival | 20.03.2013 |