Localities: Breivik: 10.05.2021
| Reporter: | Arne Geir Trædal |
| Observers: | Arne Geir Trædal |
| Site: | Breivik () |
| Date: | 2021-05-10 |
| Activity: | Spring phenology |
Observation
| Species: | Common Tern (Sterna hirundo) | |
| Phenophase: | Arrival | 09.05.2021 |
| Reporter: | Arne Geir Trædal |
| Observers: | Arne Geir Trædal |
| Site: | Breivik () |
| Date: | 2021-05-10 |
| Activity: | Spring phenology |
| Species: | Common Tern (Sterna hirundo) | |
| Phenophase: | Arrival | 09.05.2021 |