jail bird vs crook

jail bird and crook both are nouns.

Word	Noun	Adjective	Verb	Adverb
jail bird	Yes	No	No	No
crook	Yes	No	Yes	No

As nouns, crook is a hypernym of jail bird; that is, crook is a word with a broader meaning than jail bird:

jail bird: a criminal who has been jailed repeatedly
crook: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of jail bird include criminal, felon, malefactor, outlaw.

jail bird (noun)	crook (noun)
a criminal who has been jailed repeatedly	a long staff with one end being hook shaped
	someone who has committed a crime or has been legally convicted of a crime
	a circular segment of a curve

jail bird (verb)	crook (verb)
	bend or cause to bend