Lokaliteter: Alvøen: 21.04.2020
| Rapportør: | Alvøen skole |
| Observatører: | Benjamin Hansen |
| Område: | Alvøen () |
| Dato: | 2020-04-21 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Downy Birch (Betula pubescens) | |
| Phenophase: | Leaves unrolling | 21.04.2020 |
| Art: | Greylag Goose (Anser anser) | |
| Phenophase: | Arrival | 21.04.2020 |
| Art: | Colt's-foot (Tussilago farfara) | |
| Phenophase: | Flowering | 21.04.2020 |
| Art: | Bombus (Bumble-bee) | |
| Phenophase: | Adult | 21.04.2020 |
| Art: | Wood Anemone (Anemone nemorosa) | |
| Phenophase: | Flowering | 21.04.2020 |
| Art: | Goat Willow (Salix caprea) | |
| Phenophase: | Pussy willows | 21.04.2020 |
| Art: | Formica | |
| Phenophase: | Adult | 21.04.2020 |
| Art: | Eurasian Oystercatcher (Haematopus ostralegus) | |
| Phenophase: | Nest building | 21.04.2020 |