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| Reporter: | Arne Kjell Askeland |
| Observers: | Arne Kjell Askeland |
| Site: | Bokn () |
| Date: | 2021-05-06 |
| Aktivitet: | Spring phenology |
Funn
| Species: | Skylark (Alauda arvensis) | |
| Phenophase: | Arrival | 01.05.2021 |
| Species: | Skylark (Alauda arvensis) | |
| Phenophase: | Birds are singing | 01.05.2021 |