WordNet (r) 3.0 (2006):

bird sanctuary
    n 1: a building where birds are kept [syn: aviary, bird
         sanctuary, volary]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "bird sanctuary":
   Indian reservation, archives, asylum, bank, forest preserve,
   game preserve, game reserve, game sanctuary, harbor,
   harbor of refuge, harborage, haven, library, museum,
   national forest, national park, paradise, park, port, preserve,
   refuge, reservation, reserve, safe haven, safehold, sanctuary,
   snug harbor, state forest, store, stronghold, wilderness preserve,
   wildlife preserve