Localities: Bjørkelangen: 22.05.2017
| Reporter: | Per Torgersen |
| Observers: | Per Torgersen |
| Site: | Bjørkelangen () |
| Date: | 2017-05-22 |
| Activity: | Spring phenology |
Observation
| Species: | Common Swift (Apus apus) | |
| Phenophase: | Arrival | 20.05.2017 |
| Species: | Common Swift (Apus apus) | |
| Phenophase: | Birds are singing | 20.05.2017 |