hill myna vs mynah bird

hill myna and mynah bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
hill myna	Yes	No	No	No
mynah bird	Yes	No	No	No

As nouns, mynah bird is a hypernym of hill myna; that is, mynah bird is a word with a broader meaning than hill myna:

Other hypernyms of hill myna include mina, minah, myna, myna bird, mynah.

hill myna (noun)	mynah bird (noun)
glossy black Asiatic starling often taught to mimic speech	tropical Asian starlings