Localities: Breivik: 11.05.2020
| Reporter: | Arne Geir Trædal |
| Observers: | Arne Geir Trædal |
| Site: | Breivik () |
| Date: | 2020-05-11 |
| Activity: | Spring phenology |
Observation
| Species: | Common Tern (Sterna hirundo) | |
| Phenophase: | Arrival | 30.04.2020 |
| Species: | Common Tern (Sterna hirundo) | |
| Phenophase: | Birds are singing | 30.04.2020 |