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Sydney, AUSTRALIA: 'Chalky' (R) and 'Milford' (L), two very rare Fiordland crested penguins (Eudyptes pachyrhynchus) and the only females of their kind in captivity anywhere in the world, call out for their new-found mate in Sydney's Taronga Zoo, 10 January 2007. 'Munroe', a male Fiordland crested penguin which was discovered washed up on a beach near Sydney is recovering in an adjacent pen and will be introduced to the two females as part of Taronga's endangered species breeding programme. AFP PHOTO/Torsten BLACKWOOD (Photo credit should read TORSTEN BLACKWOOD/AFP via Getty Images)