tailorbird vs true warbler

tailorbird and true warbler both are nouns.

Word	Noun	Adjective	Verb	Adverb
tailorbird	Yes	No	No	No
true warbler	Yes	No	No	No

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

tailorbird: tropical Asian warbler that stitches leaves together to form and conceal its nest
true warbler: small active brownish or greyish Old World birds

Other hypernyms of tailorbird include Old World warbler.

tailorbird (noun)	true warbler (noun)
tropical Asian warbler that stitches leaves together to form and conceal its nest	small active brownish or greyish Old World birds