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| Reporter: | Hjalmar Larsen |
| Observers: | Hjalmar Larsen |
| Site: | Nordmarka () |
| Date: | 2019-05-20 |
| Aktivitet: | Spring phenology |
Funn
| Species: | Willow Warbler (Phylloscopus trochilus) | |
| Comment: | Hørt og sett | |
| Phenophase: | Arrival | 20.05.2019 |
| Reporter: | Hjalmar Larsen |
| Observers: | Hjalmar Larsen |
| Site: | Nordmarka () |
| Date: | 2019-05-20 |
| Aktivitet: | Spring phenology |
| Species: | Willow Warbler (Phylloscopus trochilus) | |
| Comment: | Hørt og sett | |
| Phenophase: | Arrival | 20.05.2019 |