squawker vs disagreeable person

squawker and disagreeable person both are nouns.

Word	Noun	Adjective	Verb	Adverb
squawker	Yes	No	No	No
disagreeable person	Yes	No	No	No

As nouns, disagreeable person is a hypernym of squawker; that is, disagreeable person is a word with a broader meaning than squawker:

Other hypernyms of squawker include unpleasant person.

squawker (noun)	disagreeable person (noun)
the loudspeaker on an intercom or public address system	a person who is not pleasant or agreeable
a person given to excessive complaints and crying and whining