wanderer vs bird of passage

wanderer and bird of passage both are nouns.

Word	Noun	Adjective	Verb	Adverb
wanderer	Yes	No	No	No
bird of passage	Yes	No	No	No

As nouns, wanderer and bird of passage are synonyms defined as:

wanderer and bird of passage: someone who leads a wandering unsettled life

Other synonyms of wanderer include roamer, rover.

wanderer (noun)	bird of passage (noun)
a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine	any bird that migrates seasonally
someone who leads a wandering unsettled life	someone who leads a wandering unsettled life