Claudio Contreras / California condor (Gymnogyps californianus), portrait. California condor recovery program, Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

Claudio Contreras / California condor (Gymnogyps californianus), two peched in tree, adult and juvenile. California condor recovery program, Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

Inaki Relanzon / Arabian Oryx (Oryx leucoryx) at sunset. Previously extinct in the wild, their conservation status is now stable thanks to conservation efforts.This male is part of a reintroduction program in Dubai, U...

Gerrit Vyn / Mature male California Condor (Gymnogyps californianus) used for the captive breeding program to restore this critically endangered species. Idaho. February.

Cyril Ruoso / Inmates of the Cedar Creek Corrections Center raising endangered Oregon spotted frog (Rana pretiosa) Prisoners in this facility are raising endangered frogs for release in the wild, as part of the Sus...

David Kjaer,David Kjaer / Great Bustard (Otis tarda) adult male breeding plumage in full spring display, on Salisbury Plain, part of a reintroduction project with birds imported under DEFRA licence from Russia. Salisbury Plain...

Nick Upton / Flock of Juvenile Common / Eurasian cranes (Grus grus) recently released by the Great Crane Project onto the Somerset Levels flying in to land on a marshy area surrounded by pastureland on a frosty, m...

Nick Upton / 2020VISION / 'Minnie', 'Squidgy' and 'Vince', three of the flock of Common / Eurasian cranes (Grus grus) a year after release by the Great Crane Project onto the Somerset Levels and Moors, with adult plumage devel...

Nick Upton / 2020VISION / Juvenile Common / Eurasian cranes (Grus grus) released by the Great Crane Project onto the Somerset Levels and Moors, on frozen snow covered pastureland. Somerset, UK, December 2010.

Peter Cairns / 2020VISION / RSPB staff member holding White tailed sea eagle chick (Haliaeetus albicilla) part of the East Scotland Sea Eagle reintroduction project, Fife, Scotland, UK, June 2011. Did you know? Sea eagles were w...

Peter Cairns / 2020VISION / Osprey (Pandion haliaeetus) in flight, fishing at dawn, Rothiemurchus forest, Cairngorms NP, Scotland, UK, July. Photographer quote: ""This female, caught at first light, has two hungry chicks waiting...

Nick Upton / 2020VISION / Juvenile Common / Eurasian cranes (Grus grus) recently released by the Great Crane Project onto the Somerset Levels and Moors, foraging in pastureland near a drainage ditch; one turns over an old cow...