bonnet macaque vs crown monkey

bonnet macaque and crown monkey both are nouns.

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

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

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

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

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