Sigurd Eriksen
Spring phenology 2007-06-05 Sigurd Eriksen Gårdsbruk uten husdyr (Akershus, Norway) | 2007-04-03 Adult bumble-bee 2007-04-01 Arrival white wagtail 2007-05-12 Arrival common cuckoo 2007-03-22 Arrival northern lapwing 2007-03-27 Flowering colt's-foot 2007-04-11 Flowering wood anemone 2007-04-25 Leaves unrolling downy birch 2007-02-25 Pussy willows goat willow |