bird sanctuary vs volary

bird sanctuary and volary both are nouns.

Word	Noun	Adjective	Verb	Adverb
bird sanctuary	Yes	No	No	No
volary	Yes	No	No	No

As nouns, bird sanctuary and volary are synonyms defined as:

Other synonyms of bird sanctuary include aviary.

bird sanctuary (noun)	volary (noun)
a building where birds are kept	a building where birds are kept