Great Bustard (Otis tarda) adult male in breeding plumage calling, on Salisbury Plain, part of a reintroduction project with birds imported under DEFRA licence from Russia. Salisbury Plain, Wiltshire, England. March. Wing tags digitally removed.  ,  BIRDS,BREEDING PLUMAGE,BUSTARDS,CALLING,CONSERVATION,ENDANGERED,ENGLAND,EUROPE,MALES,OTIDIDAE,REINTRODUCED,REINTRODUCTION,REINTRODUCTIONS,SALISBURY,UK,VERTEBRATES,VOCALISATION,WILTSHIRE,United Kingdom  ,  David Kjaer