What giant aviaries you know and which birds are kept in them?
They seem to be more and more of these. I wonder if the mesh got cheaper or zoos learned to use thinner nets?
I've seen quite a few big aviaries, but the term "giant" is still quite personal. I also can't remember all the species i've seen in them...
Amsterdam (not walk-through):
3 types of vultures
Emmen:
Among others: flamingo's, boat-billed herons, red ibis, roseate spoonbill, chaco-chacalaca, inca-terns, some duck species...
Walsrode:
Among others: secretary bird, roseate spoonbill, hammerkop, a few more i can't remember and those quirky Montezuma oropendola's.
Also quite large i've seen:
Blijdorp: Asiatic aviary; ibisses, spoonbills, black storks, golden pheasants and a few more.
Hannover Zoo (not walk-through): Vulture aviary
Praha Zoo (not walk-through): Vulture aviary
Not seen but heared about:
Veldhoven (dutch parrot refuge): mostly african greys and cockatoos i believe
Blijdorp: New european aviary (although divided in two parts i believe)
Parc Paradisio: Giant Aviary; species list should be around somewhere... at least spoonbills and ibisses i believe.