This aviary structure looks identical to several that were built as part of the San Diego Zoo's Outback area, for kookaburra and other Australian birds.
The residents of this aviary have since changed. The taveta weavers and the emerald starling are now sharing a birdcage with the Congo peafowl back by the Outback. In their place we have a pair of white-headed buffalo weavers and a blue-bellied roller.