common spoonbill vs spoonbill

common spoonbill and spoonbill both are nouns.

Word	Noun	Adjective	Verb	Adverb
common spoonbill	Yes	No	No	No
spoonbill	Yes	No	No	No

As nouns, spoonbill is a hypernym of common spoonbill; that is, spoonbill is a word with a broader meaning than common spoonbill:

common spoonbill: pure white crested spoonbill of southern Eurasia and northeastern Africa
spoonbill: wading birds having a long flat bill with a tip like a spoon

common spoonbill (noun)	spoonbill (noun)
pure white crested spoonbill of southern Eurasia and northeastern Africa	wading birds having a long flat bill with a tip like a spoon