bonnet monkey vs crown monkey

bonnet monkey and crown monkey both are nouns.

Word	Noun	Adjective	Verb	Adverb
bonnet monkey	Yes	No	No	No
crown monkey	Yes	No	No	No

As nouns, bonnet monkey and crown monkey are synonyms defined as:

bonnet monkey and crown monkey: Indian macaque with a bonnet-like tuft of hair

Other synonyms of bonnet monkey include bonnet macaque, capped macaque, Macaca radiata.

bonnet monkey (noun)	crown monkey (noun)
Indian macaque with a bonnet-like tuft of hair	Indian macaque with a bonnet-like tuft of hair