kook vs queer bird

kook and queer bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
kook	Yes	No	No	No
queer bird	Yes	No	No	No

As nouns, kook and queer bird are synonyms defined as:

kook and queer bird: someone regarded as eccentric or crazy and standing out from a group

Other synonyms of kook include odd fellow, odd fish, odd man out, queer duck.

kook (noun)	queer bird (noun)
someone regarded as eccentric or crazy and standing out from a group	someone regarded as eccentric or crazy and standing out from a group