harpy eagle vs harpy

harpy eagle and harpy both are nouns.

Word	Noun	Adjective	Verb	Adverb
harpy eagle	Yes	No	No	No
harpy	Yes	No	No	No

As nouns, harpy eagle and harpy are synonyms defined as:

harpy eagle and harpy: large black-and-white crested eagle of tropical America

Other synonyms of harpy eagle include Harpia harpyja.

harpy eagle (noun)	harpy (noun)
large black-and-white crested eagle of tropical America	large black-and-white crested eagle of tropical America
	any of various fruit bats of the genus Nyctimene distinguished by nostrils drawn out into diverging tubes
	a malicious woman with a fierce temper