Spring phenology2013-05-21 Øistein Heen Kornsjø (Østfold, Norway) | 2013-05-20 Arrival common cuckoo |
Spring phenology2013-05-11 Øistein Heen Kornsjø (Østfold, Norway) | 2013-05-09 Arrival pied flycatcher 2013-05-09 Arrival song thrush 2013-05-09 Arrival willow warbler |
Spring phenology2013-04-21 Øistein Heen Kornsjø (Østfold, Norway) | 2013-04-19 Arrival song thrush |
Spring phenology2013-04-13 Øistein Heen Kornsjø (Østfold, Norway) | 2013-04-13 Arrival chaffinch |
Spring phenology2012-05-10 Øistein Heen Kornsjø (Østfold, Norway) | 2012-05-10 Arrival common cuckoo |
Spring phenology2012-03-27 Øistein Heen Kornsjø (Østfold, Norway) | 2012-03-26 Arrival chaffinch |
Spring phenology2011-05-16 Øistein Heen Kornsjø (Østfold, Norway) | 2011-05-15 Arrival common cuckoo |