ant shrike vs antbird

ant shrike and antbird both are nouns.

Word	Noun	Adjective	Verb	Adverb
ant shrike	Yes	No	No	No
antbird	Yes	No	No	No

As nouns, antbird is a hypernym of ant shrike; that is, antbird is a word with a broader meaning than ant shrike:

ant shrike: antbirds superficially resembling shrikes
antbird: any of various dull-colored South American birds that feeding on ants some following army ant swarms

Other hypernyms of ant shrike include ant bird.

ant shrike (noun)	antbird (noun)
antbirds superficially resembling shrikes	any of various dull-colored South American birds that feeding on ants some following army ant swarms