Avian

Breast feather of Cockerel, showing orange colour and area of green glittering iridescence.

Yellow headed amazon parrot Amazona oratrix on perch with red epaulettes

Woodpecker skull with hyoid horns diagram, viewed in profile

Woodpecker skull with hyoid horns view from above diagram

Long tailed tits Aegithalos caudatus on hawthorn and bramble

Robin Erithacus rubecula perched on an old wooden post

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.

Coal Tit Periparus ater perched on a branch with several lichen species

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

Male bullfinch in breeding plumage on flowering cherry

Takahe Porphyrio hochstetteri with one foot raised sjowing amazing colourful plumage

Tawny Owlets Strix aluco sitting clustered together on a branch covered in grey down feathers

Teal Anas crecca showing elaborate beautiful plumage

Thrush Turdus philomelos nesting in a garden shed amongst gardeing gloves, string, and flower pots

Thrush Turdus philomelos amongst grass and meadow flowers, cut to white

Tree sparrow Passer montanus male on a branch