Yellow-legged seagull chick being ringed
Scientists examining yellow-legged gull chick
Scientists examining yellow-legged gulls
Researcher marking a gull's egg
Black-legged kittiwakes
Ringing an European Robin
A seagull flies above Holandsfjorden. Svartisen, Norway.
Black-legged kittiwake in flight
Black-headed gull
Seagull in flight
Yellow-legged gull infested with ticks
Kelp gulls fighting
Kelp gull taking off
Measuring garden warbler wing length
Garden warbler held in hands
Measuring dunnock wing length
Ringing common blackbird
Gulls fishing at water surface
Gull fishing at water surface
Gull catching fish on water surface
Black-headed gull nesting
Squabbling Kelp Gulls
Seagulls fighting over seafood scraps
Laughing gull
European herring gull nesting
Kelp gull chicks
Black-headed gull calling
Black-headed gull in flight
Black-headed gulls in flight
Hartlaub's gull
Kelp gull
Kelp gulls
Mediterranean gull
Ring billed gull
Black-headed gulls
Hartlaub's gulls
Bedraggled Juvenile Kelp Gull
Fledgling kelp gull in flight
Kelp gull in flight
Silver gulls
Herring gull on Skomer Island, Pembrokeshire, UK
Herring gull on nest, Skomer Island, Pembrokeshire, UK
Lesser black-backed gull, Skomer Island, Pembrokeshire, UK
Kittiwake colony on Skomer Island, Pembrokeshire, UK
Speagulls, X-ray
Gull eggs in a nest
Speagull, X-ray
Mediterranean gulls, X-ray
A sea gull in flight. Svartisen, Norway.
Sea gulls in flight above Hollandsfjord, Svartisen, Norway
European brown bear walking followed by black-headed gulls
Lesser black-backed gull, 19th century
Seagull and sea holly, X-ray
Black-legged kittiwake flying near an iceberg
Dunnock being weighed
European robin in net
Greenfinch in net
Gentoo penguin and chick
Seagull and the Moon
Gannets and gulls fishing, Scotland
Kelp gull calling
Sowing crops, Sweden
Kelp gull juvenile feeding
Australian sea lion
Sea gulls scavenging
Tourist feeding sea gulls
Juvenile kelp gull catching a mussel
Black-headed gull on its nest
Cape gannet feeding its chick
Brown booby parent and chick
Brown booby parents and chick
Common tern
Landfill site
Killdeer
Kelp gull (Larus dominicanus)
Seagulls
Common tern attacking a gull
Waterbirds, X-ray montage
Black-headed gull in winter plumage
Gulls feeding on earthworms on freshly ploughed field
Puffins
Inca tern
Researcher examining a bat
Biologist tagging the flipper of a southern elephant seal
Brown skua in flight
Rose ringed parakeet
Domestic pigeon
Henry and Bannerman with bird-of-prey
Researching noise disturbance to birds at an airport
Little tern conservation fieldwork
Ring-billed gull
Brown-headed gulls on a beach
Seabirds feeding
Gentoo penguins
Kelp gull, Tierra del Fuego
Western gull feeding
Seagull
Sperm whale tail flukes
Ecological researcher studying specimens
Lizard being examined by an ecological researcher
Releasing great tit from net
Sandwich tern in flight
Atlantic puffin in flight
Atlantic puffins
Blue-footed booby parent and chick
Black-legged kittiwake and young
Ecological research laboratory, France
Gentoo penguin feeding chick
Ringed kingfisher
African Penguin emerging from the water
African Penguin pair resting
Red-crested pochards, India
Red-legged crake
Cape cormorants looking out to sea
Barn owls feeding on a rat
Chick
Black-headed gull.
Red-legged honeycreeper male
Feeding
Nurture
Seagull flying over long pier
Seagulls in flight
Gull egg
European brown bear in tall grass watching a gull
Razorbills (Alca torda), close-up
Razorbill (Alca torda), close-up
little stint (Calidris minuta)
White pelican in flight
Black-browed albatrosses with their young
Salvin's albatrosses
Pygmy cormorant perching on branches
Great cormorant
Male red-crested pochard
Chinstrap penguin
Cormorants
Black skimmer
African Penguin Juvenile
African Penguins preening
Brown boobies
Brown booby
Brown noddies
Northern gannet fishing, Scotland
Male goldeneye duck in breeding plumage
White-capped albatross
Northern gannet colony
Ruddy turnstone
Marbled godwits
Double-crested cormorant
Gentoo penguins (Pygoscelis papua)
Gentoo penguins (Pygoscelis papua).
Cape Cormorant
Cape gannet landing at colony
Cape gannets taking off at colony
Cape gannet
Cape gannets
Northern gannet, 19th century artwork
Great auk, 19th century artwork
Common gull,19th century artwork
Common tern, 19th century artwork