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| Reporter: | Øistein Heen |
| Observers: | Øistein Heen |
| Site: | Heen Gård () |
| Date: | 2013-05-21 |
| Aktivitet: | Spring phenology |
Funn
| Species: | Barn Swallow (Hirundo rustica) | |
| Phenophase: | Arrival | 16.05.2013 |
| Species: | House Martin (Delichon urbicum) | |
| Phenophase: | Arrival | 16.05.2013 |
| Species: | Eurasian Collared Dove (Streptopelia decaocto) | |
| Phenophase: | Arrival | 09.05.2013 |
| Species: | Common Swift (Apus apus) | |
| Phenophase: | Arrival | 21.05.2013 |