bird vs parrot

bird and parrot both are nouns.

As nouns, parrot is a hyponym of bird; that is, parrot is a word with a more specific, narrower meaning than bird:

bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
parrot: usually brightly colored zygodactyl tropical birds with short hooked beaks and the ability to mimic sounds

Other hyponyms of bird include dickey-bird, dickeybird, dicky-bird, dickybird, cock, hen, nester, night bird, bird of passage, protoavis, Archaeopteryx lithographica, archaeopteryx, archeopteryx, Sinornis, Ibero-mesornis, archaeornis, ratite, ratite bird, flightless bird, carinate, carinate bird, flying bird, passeriform bird, passerine, nonpasserine bird, raptor, raptorial bird, bird of prey, gallinacean, gallinaceous bird, cuculiform bird, coraciiform bird, apodiform bird, caprimulgiform bird, piciform bird, trogon, aquatic bird, twitterer.

bird (noun)	parrot (noun)
warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings	usually brightly colored zygodactyl tropical birds with short hooked beaks and the ability to mimic sounds
the flesh of a bird or fowl (wild or domestic) used as food	a copycat who does not understand the words or acts being imitated
informal terms for a (young) woman
a cry or noise made to express displeasure or contempt
badminton equipment consisting of a ball of cork or rubber with a crown of feathers

bird (verb)	parrot (verb)
watch and study birds in their natural habitat	repeat mindlessly