Java finch vs weaver finch

Java finch and weaver finch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Java finch	Yes	No	No	No
weaver finch	Yes	No	No	No

As nouns, weaver finch is a hypernym of Java finch; that is, weaver finch is a word with a broader meaning than Java finch:

Java finch: small finch-like Indonesian weaverbird that frequents rice fields
weaver finch: finch-like African and Asian colonial birds noted for their elaborately woven nests

Other hypernyms of Java finch include weaver, weaverbird.

Java finch (noun)	weaver finch (noun)
small finch-like Indonesian weaverbird that frequents rice fields	finch-like African and Asian colonial birds noted for their elaborately woven nests