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| Reporter: | Olaf Rudi |
| Observers: | Olaf Rudi |
| Site: | Ruditjern () |
| Date: | 2011-04-22 |
| Aktivitet: | Spring phenology |
Funn
| Species: | Mallard (Anas platyrhynchos) | |
| Phenophase: | Arrival | 10.04.2011 |
| Species: | Common Crane (Grus grus) | |
| Phenophase: | Arrival | 12.04.2011 |