Site: Krokstadfjorden
Spring phenology 2006-04-20 Norsk Ornitologisk Forening Krokstadfjorden (Østfold, Norway) | 2006-04-20 Arrival common tern |
Spring phenology 2006-04-20 Norsk Ornitologisk Forening Krokstadfjorden (Østfold, Norway) | 2006-04-20 Arrival common tern |