endothermic

House sparrow Passer domesticus.  Male in profile, pen and ink with colour wash

Tree sparrow Passer montanus Male diagram in pen and ink with colour wash

Gull Larus wing anatomy to show the feathers and markings

Gull Larus head anatomy simplified diagram to help show structures of note

Gull Larus in flight anatomy simplified to show structures of note in this family of seabirds

Gull Larus body anatomy showing features to look out for when the bird is at rest

House sparrow Passes domesticus Female pen and ink diagram with watercolour top wash

House sparrow Passer domesticus male perching on a branch with rosehips.

Barn swallow Hirundo rustica in flight, seen from below, with a small insect in its beak

Barn swallow Hirundo rustica viewed from above with small insect in its beak

Sketchbook study of a dead Bank vole Myodes glareolus, brought in by a cat

Bagot goat Capra aegagrus hircus, this species lives semi-wild at Blithfield Hall, Staffordshire.

Male bullfinch in breeding plumage on flowering cherry

Water vole Arvicola amphibius pencil sketch of stream bank and a vole swimming underwater emitting air bubbles

Water vole Arvicola amphibius tracks footprints

Water vole Arvicola amphibius showing how fluffy and formless these creatires are, in profile on sandy bank with background riparian vegetation

Wood mouse Apodemus sylvaticus

Pipistrelle Pipistrellus pipistrellus in flight

Rabbit Oryctolagus cuniculus crouched ready for escape, in profile, cut to white

Red deer Cervus elaphus buck with antlers with inset of doe head, both in profile, cut to whtie

Roe deer Capreolus capreolus in profile cut to white with details of the distinctive white patch on the back side, and the head of the doe

Mole Talpa europaea portrait in profile cut to white

Muntjac Muntiacus reevesi male in profile showing its tusks and rich brown fur

Otter Lutra lutra in amongst reeds and in a patch of clear mud, startled and looking at the viewer, showing webbed feet and pale chin and chest