Tim Laman / Ornithologist Brett Benz prepares a Huon Macgregor's Gardener Bowerbird (Amblyornis macgregoriae) museum specimen. At the Araurong field camp in the Sarawaget Range Indonesia, Dec 2006

Ann & Steve Toon / Osprey (Pandion haliaetus) chick being weighed by Forestry Commission ornithologist Martin Davison, during bird ringing, Kielder Forest, Northumberland, UK, July 2012

Ann & Steve Toon / Osprey (Pandion haliaetus) chick being ringed by Forestry Commission ornithologist, Kielder Forest, Northumberland, UK, July 2012

Paul Harris / 2020VISION / Alex Cruickshank of the Hampshire Wildlife Trust and Ornithologist, John Eyre assessing habitat suitability for Woodlark (Lullula arborea) and other bird species, Caesar's Camp, Fleet, Hampshire, Engl...

Roland Seitre / Pepper Trail, ornithologist, examining dead bird at the National Fish and Wildlife Forensics Laboratory, Ashland, Oregon, USA

Ann & Steve Toon / Peregrine chicks (Falco peregrinus) ringed with Ornithologist recording data, Northumberland National Park, UK, July 2011. Captive.

Ann & Steve Toon / Peregrine falcon (Falco peregrinus) Ornithologist ringing chick, Northumberland National Park, UK, July 2011. Captive.

Ann & Steve Toon / Peregrine falcon chick (Falco peregrinus) with Ornithologist extending one wing, Northumberland National Park, UK, June 2011. Captive.

Tim Laman / Foja Mountains RAP expedition ornithologist Chris Milensky and mammalogist Kris Helgen work in the prep tent preparing specimens late into the night. 1200 m Lower Camp. Foja Mountains, Papua, Indones...

Tim Laman / Kwerba village boys bring birds shot by slingshot to LIPI ornithologist. Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expedition)

Bruno D'Amicis / LIPU/Birdlife International ornithologist Jacopo Cecere and a volounteer temporarily mark an adult Cory's Shearwater (Calonectris diomedea) on the island of Linosa, Sicily. Marine Important Bird Areas...

Bruno D'Amicis / LIPU/Birdlife International ornithologist taking bill measures of a Cory's Shearwater (Calonectris diomedea) in the breeding colony on the island of Linosa, Sicily. Marine Important Bird Areas project...

Bruno D'Amicis / LIPU/Birdlife International ornithologist Jacopo Cecere catching a Cory's Shearwater (Calonectris diomedea) in the breeding colony on the island of Linosa, Sicily to apply a GPS transmitter. Marine Im...

Tim Laman / Ornithologist Brett Benz prepares a Huon Macgregor's Gardener Bowerbird (Amblyornis macgregoriae) museum specimen. Araurong field camp, Sarawaget Range Indonesia, Dec 2006

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) emerging from nest box installed by researcher Neiva Guedes, Pantanal, Brazil

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) emerging from nest box installed by researcher Neiva Guedes, Pantanal, Brazil

Wild Wonders of Europe / Schandy / Guide and Park ranger, Zaur Amatovich Takhtiec (left) with guide and ornithologist, Vladimir Yu. Archipov, near Dombay, Teberdinsky biosphere reserve, Caucasus, Russia, July 2008 (Model released)

Wild Wonders of Europe / Schandy / Guide and ornithologist, Vladimir Arkhipov, sitting on a fallen Nordmann fir (Abies nordmanniana) tree, old-growth forest, Arkhyz valley, western part of the Teberdinsky Biosphere reserve, Caucasus, R...

Jouan & Rius / Ornithologist watching Gannet colony, Hermaness Nature Resserve, Shetland Islands, Scotland, UK

Jouan & Rius / Ornithologist with young Puffin (Fratercula arctica) chick, Shetland Islands, Scotland, UK

Tui De Roy / North Island Brown Kiwi (Apteryx australis mantelli) biologist, Eric Fox, removing egg shell from a newly-hatched chick in incubator, Otorohanga Breeding Center, New Zealand

Paul D Stewart / Portrait of John Gould (14 September 1804 - 3 February 1881). Engraving by T.H. Maguire 1849 as part of the friends of the Ipswich Museum series. Gould was a wildlife illustrator and ornithologist bor...

Paul D Stewart / A Galapagos Mockingbird, from the collection of the Charles Darwin Research Station on Galapagos. While actually on the Beagle voyage, it was the mockinbirds, and not the celebrated finches gave Darwi...

Paul D Stewart / Two Galapagos Mockingbirds (right, upper from Espanola lower from San Cristobal), three Galapagos finch species (upper left) and Yellow Warbler (gold, lower left), from the collection of the Charles D...

Paul D Stewart / A group of Darwin's finches, Geospizinae, from the collection of the Charles Darwin Research Station on Galapagos, showing a range of beak sizes and shapes. Darwin originally misidentified the finches...

Paul D Stewart / Illustration from page 379, 'Journal of Researches' 2nd Edition 1845 Charles Darwin. The contrasting beaks of four Galapagos finches, three Geospizinae genus and one Certhidea (Warbler finch). Darwin...

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) researcher, Neiva Guedes, holding eggs in front of nest box, Pantanal, Brazil

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) pair on nest box installed by researcher Neiva Guedes, Pantanal, Brazil

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) researcher, Cezar Correa, looking for eggs inside nest box, Pantanal, Brazil

Luciano Candisani / Hyacinth Macaw (Anodorhynchus hyacinthinus) researcher, Neiva Guedes, director of Macaw Conservation Program, holding young in front of nest cavity, endangered species, Pantanal Ecosystem, Brazil

Mark Moffett / Lesser Woodcreeper (Xiphorhynchus fuscus) held in the right hand of Ornithologist Paulo Cordeiro and a White-shouldered Fire-eye (Pyriglena leucoptera) is held in his left, Una Ecopark, Atlantic Fores...