canary vs vocalizer

canary and vocalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
canary	Yes	Yes	No	No
vocalizer	Yes	No	No	No

As nouns, vocalizer is a hypernym of canary; that is, vocalizer is a word with a broader meaning than canary:

Other hypernyms of canary include singer, vocaliser, vocalist.

canary (noun)	vocalizer (noun)
any of several small Old World finches	a person who sings
a moderate yellow with a greenish tinge	an organism that can utter vocal sounds
a female singer
someone acting as an informer or decoy for the police

canary (adjective)	vocalizer (adjective)
having the color of a canary; of a light to moderate yellow