Pal Hermansen / House martin (Delichon urbica) flying upwards, with clouds, Buskerud, Norway, July.

Pal Hermansen / Silver bordered fritillary butterfly (Boloria selene)iflying composite, in early morning light, Viken, Norway. July. Composite image.

Pal Hermansen / Two Silver bordered fritillary butterflies (Boloria selene) in flight in early morning light, Viken, Norway. June.

Pal Hermansen / Poplar leaf beetle (Chrysomela populi) flying off from plant, Viken, Norway. June.

Pal Hermansen / Six spot burnet moth (Zygaena filipendulae) flying off. Viken, Norway. July. Composite image.

Pal Hermansen / Aerial panning shot of a frozen forest and a river in below freezing conditions. The river has partially frozen at its edges. Skrukkelia, Viken, Norway.

Bernard Castelein / Grey-headed wagtail (Motacilla flava thunbergi) perched on branch, Hemsedal region, Norway. June.

Bernard Castelein / The Hemsila river in summer, tree-lined riverbanks and hills with high cloud in sky, Hemsedal region, Norway. June, 2022.

Bernard Castelein / The Hemsila river in summer, tree-lined riverbanks and hills with high cloud in sky, Hemsedal region, Norway. June, 2022.

Pal Hermansen / Pygmy owl (Glaucidium passerinum) looking out of hole in dead spruce tree, Viken, Norway

Pal Hermansen / Cabin with lights on, in middle of clear-cut forest, Viken, Norway.

Pal Hermansen / Panorama of hydroelectric power lake after drought and massive power production. Viken, Norway. August.