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| Rapportør: | Per Torgersen |
| Observatører: | Per Torgersen |
| Site: | Bjørkelangen () |
| Date: | 2021-03-23 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Small Tortoiseshell (Aglais urticae) | |
| Merknad: | 2 stk. | |
| Phenophase: | Adult | 23.03.2021 |
| Art: | Alder (Alnus) | |
| Phenophase: | Flowering | 09.03.2021 |
| Art: | Goat Willow (Salix caprea) | |
| Phenophase: | Pussy willows | 21.03.2021 |
| Art: | Common Blackbird (Turdus merula) | |
| Phenophase: | Birds are singing | 23.03.2021 |