here's a more recent photo by NZJeremy http://www.zoochat.com/14/auckland-zoo-30410/
When I saw this aviary in 1995 it had lots of parrots of various species, now it is used for macaws. NZJeremy says on his photo "This structure has been used as an aviary since the zoo opened in 1922 and is one of two remaining original enclosures"
