Observatør Thomas Øverby
Spring phenology 2011-05-02 Thomas Øverby Mørkved - Stenbekk (Innlandet, Norway) | 2011-04-30 Arrival white wagtail 2011-04-20 Arrival northern lapwing 2011-04-03 Flowering colt's-foot 2011-04-10 Flowering wood anemone 2011-04-25 Leaves unrolling downy birch 2011-04-03 Adult small tortoiseshell |