bobolink vs ricebird

bobolink and ricebird both are nouns.

Word	Noun	Adjective	Verb	Adverb
bobolink	Yes	No	No	No
ricebird	Yes	No	No	No

As nouns, bobolink and ricebird are synonyms defined as:

Other synonyms of bobolink include Dolichonyx oryzivorus, reedbird.

bobolink (noun)	ricebird (noun)
migratory American songbird	migratory American songbird
	small finch-like Indonesian weaverbird that frequents rice fields