Cyanocitta cristata vs jaybird

Cyanocitta cristata and jaybird both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cyanocitta cristata	Yes	No	No	No
jaybird	Yes	No	No	No

As nouns, Cyanocitta cristata and jaybird are synonyms defined as:

Cyanocitta cristata and jaybird: common jay of eastern North America; bright blue with grey breast

Other synonyms of Cyanocitta cristata include blue jay.

Cyanocitta cristata (noun)	jaybird (noun)
common jay of eastern North America; bright blue with grey breast	common jay of eastern North America; bright blue with grey breast