Localities: Nordmarka: 02.06.2017
| Reporter: | Hjalmar Larsen |
| Observers: | Hjalmar Larsen |
| Site: | Nordmarka () |
| Date: | 2017-06-02 |
| Activity: | Spring phenology |
Observation
| Species: | Willow Warbler (Phylloscopus trochilus) | |
| Phenophase: | Arrival | 02.06.2017 |
| Species: | Willow Warbler (Phylloscopus trochilus) | |
| Phenophase: | Birds are singing | 02.06.2017 |