ovenbird vs wood warbler

ovenbird and wood warbler both are nouns.

Word	Noun	Adjective	Verb	Adverb
ovenbird	Yes	No	No	No
wood warbler	Yes	No	No	No

As nouns, wood warbler is a hypernym of ovenbird; that is, wood warbler is a word with a broader meaning than ovenbird:

ovenbird: American warbler; builds a dome-shaped nest on the ground
wood warbler: small bright-colored American songbird with a weak unmusical song

Other hypernyms of ovenbird include New World warbler.

ovenbird (noun)	wood warbler (noun)
American warbler; builds a dome-shaped nest on the ground	small bright-colored American songbird with a weak unmusical song
small brownish South American birds that build oven-shaped clay nests	European woodland warbler with dull yellow plumage