dodo vs columbiform bird

dodo and columbiform bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
dodo	Yes	No	No	No
columbiform bird	Yes	No	No	No

As nouns, columbiform bird is a hypernym of dodo; that is, columbiform bird is a word with a broader meaning than dodo:

dodo: extinct heavy flightless bird of Mauritius related to pigeons
columbiform bird: a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes

dodo (noun)	columbiform bird (noun)
extinct heavy flightless bird of Mauritius related to pigeons	a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes
someone whose style is out of fashion