sexual dimorphism

Dragonfly nymph Anisoptera from above dorsal view cut to white

Emperor dragonfly Anax imperator male dorsal view cut to white

Four spotted chaser Libellula quadrimaculata male cut to white

Hairy dragonfly Brachytron pratense male cut to white

Emperor moth Saturnia pavonia female adult cut to whtie showing grey and brown furry wings with eyespots

Orange Tip butterfly Anthocharis cardamines with outstretched wings cut to white

Common blue Polymmatus icarus male in field, with background landscape and ladies smock, knapweed, scabious, and buttercups in meadowland

Common blue Polymmatus icarus male cut to whtie

Common blue Polymmatus icarus male with wings outstretched and view with wings folded showing white and black spots and orange spots

Dark Green Fritillary butterfly Argynnis aglaja with wings folded so you can see the green and species specific dark green colours on the underside, cut to white

European Stag beetle Lucanus cervus showing glowing mahogony back and massive adapted mandibles

Hercules beetle Dynastes hercules in side view, facing right, showing enormous horn

Lesser diving beetle Acilius sulcatus pointing downwards with water weed behind, hind legs outstretched to show how they resemble oars

Axis deer axis axis showing white spots and antlers, looking at the viewer with one hind leg raised.

Tufted duck pair Aythya fuligula looking in different directions

Peacock pavo pair with male tail on display, disintersted peahen passing by in front of him

Pheasant Phasianus colchicus cock perched in a tree

Pheasant Phasianus colchicus cock striding on the ground with small fern and grass at his feet

Pochard Aythya ferina pair with male with rusty head and female on one leg with head nestled into her chest

Edier duck Somateria mollissima pair with chicks in rainy coastal scene male swimming

Goosander or Common merganser Mergus merganser on a lake with sundew, rocks and a beach in the foreground, scrubby vegetation behind, set in northern Wales uplands.