parrot's beak vs parrot's bill

parrot's beak and parrot's bill both are nouns.

Word	Noun	Adjective	Verb	Adverb
parrot's beak	Yes	No	No	No
parrot's bill	Yes	No	No	No

As nouns, parrot's beak and parrot's bill are synonyms defined as:

parrot's beak and parrot's bill: evergreen shrub with scarlet to white clawlike or beaklike flowers; New Zealand

Other synonyms of parrot's beak include Clianthus puniceus.

parrot's beak (noun)	parrot's bill (noun)
evergreen shrub with scarlet to white clawlike or beaklike flowers; New Zealand	evergreen shrub with scarlet to white clawlike or beaklike flowers; New Zealand