Montagu's harrier, artwork
Bonelli's eagle, artwork
Sparrowhawk, artwork
European honey buzzard, artwork
Cetti's warbler, artwork
Eurasian eagle owl, artwork
Common buzzard, artwork
Peregrine falcon, artwork
Bonelli's eagles, artwork
Short-toed treecreeper, artwork
Nightingale, artwork
Nightjar, artwork
Woodlark, artwork
Blackbird, artwork
Chiffchaff, artwork
Firecrest, artwork
Chaffinch, artwork
Little grebe, artwork
Reed warbler, artwork
Common magpie, artwork
Common reed bunting, artwork
Kentish plover, artwork
Streaked fantail warbler, artwork
Common wood pigeon, artwork
Turtle dove, artwork
Common cuckoo, artwork
Crag martin. Artwork
Grey wagtail, artwork
White-throated dipper, artwork
Wren calling, artwork
Eurasian blackcap, artwork
Common whitethroat, artwork
Dartford warbler, artwork
Subalpine warbler, artwork
Eurasian nuthatch, artwork
Coal tit, artwork
Long-tailed tit, artwork
Crested tit, artwork
Great tit, artwork
Blue tit, artwork
Golden oriole, artwork
Alpine accentor, artwork
Northern goshawk, artwork
Short-toed eagle, artwork
Common kestrel, artwork
Scops owl, artwork
Barn owl, artwork
Tawny owl, artwork
Long-eared owl, artwork
Short-toed eagle and prey, artwork
Ruppell's vulture
Sparrowhawk, X-ray
Sparrowhawk head, X-ray
Peregrine falcon skeleton
Penguins mating, artwork
European shag, artwork
Grey heron fishing, artwork
Montagu's harrier, preening female
Greenfinch, artwork
European bee-eater, artwork
Corn bunting, artwork
Red-legged partridge, artwork.
Great spotted woodpecker, artwork
Eurasian jay, artwork
European starling, artwork
House sparrow, artwork
Rock bunting, artwork
Female snow bunting
Buzzard, X-ray
Long-eared owl, X-ray
Great spotted woodpeckers, artwork
Green woodpecker, artwork
Common kingfisher fishing, artwork
European goldfinch, 19th century artwork
Bird reproductive organs, artwork
Eurasian blackcaps, artwork
Great cormorant, artwork
White wagtail, artwork
African stonechat, artwork
Song thrush, artwork
Carrion crow, artwork
Common raven, artwork
Eurasian woodcock, artwork
Bird migration, artwork
Duck and flowers, X-ray
Rainbow lorikeet
Bird on azalea branch, X-ray
Lilac-breasted roller in flight
Lilac-breasted roller perching on twig
Lilac-breasted roller perching on stump
Bengal florican
Great crested grebe
Wheatear, artwork
Eurasian penduline tit, artwork
European robin, artwork
Black woodpecker, artwork
Speagull, X-ray
Coot and irises, X-ray
Parakeets, coloured X-ray
Goldcrest on a branch, X-ray
Robin feather
Male mandarin duck
Domestic pigeon
Sulawesi red-knobbed hornbill
Sparrow chick skin, light micrograph
Greater ani
Yellow-browed tody-flycatcher
Barn owl, X-ray
Kestrel, X-ray
Black harrier chicks
Young bald eagle
Feathers, X-ray
Ring-necked dove, X-ray
House martin heart, light micrograph
Ocellated lizard, artwork
Quail brain, light micrograph
Marsh harrier hunting
Bird on camellia shrub, X-ray
Northern goshawk flying through a tube
Stuffed Eurasian griffon vulture
Hen harrier, 19th century
Juvenile bateleur eagle
Secretary bird
Northern crested caracara
Black-shouldered kite
Crested caracara
Bald eagle
Treecreeper, X-ray
Cinereous harrier attacking southern crested caracara
Viperine water snake, artwork
Fire salamander, artwork
Spanish pond turtle, artwork
Western green lizard, artwork
Iberian wall lizard, artwork
Slow worm, artwork
Aesculapian snake, artwork
Grass snake, artwork
Asp viper, artwork
Montpellier snake, artwork
Cinereous harrier
Esmeralda's robber frog
Preserved greater siren
European goldfinch, artwork
Little owl, X-ray
Mediterranean gull in flight, X-ray
European green woodpecker, X-ray
Hobby
Southern Caracara, Puerto Natales, Patagonia, Chile
Crested serpent eagle
Great bittern
Peregrine falcon
Osprey
Martial Eagle in flight with prey
Martial Eagle with live Guinea Fowl prey
Dove feeding, X-ray
Harris's hawk
Chicken, X-ray
Stilt wader bird, X-ray
Gapeworm head, SEM
Pale chanting goshawk
Red kite
Snowy owl
Common genet, artwork
Moorish gecko, artwork
Southern smooth snake, artwork
Common toad, artwork
Common frog, artwork
Common wall lizard, artwork
Ladder snake, artwork
Preserved three-toed amphiuma
Common midwife toad and eggs, artwork
White dove preserved in memory of Nikola Tesla
Barn swallow, artwork
Lizards, X-ray
Leaf-nosed fruit bat, illustration
Elegant stubfoot toad
House gecko
Squirrels on a branch, X-ray
Three tadpoles