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| Rapportør: | Einar H Glendrange |
| Observatører: | Einar H Glendrange |
| Site: | Bjørnstad () |
| Date: | 2011-05-07 |
| Aktivitet: | Spring phenology |
Funn
| Art: | Barn Swallow (Hirundo rustica) | |
| Phenophase: | Arrival | 07.05.2011 |
| Art: | Sycamore (Acer pseudoplatanus) | |
| Phenophase: | Leaves unrolling | 07.05.2011 |