Corvus frugilegus vs rook

Corvus frugilegus and rook both are nouns.

Word	Noun	Adjective	Verb	Adverb
Corvus frugilegus	Yes	No	No	No
rook	Yes	No	Yes	No

As nouns, Corvus frugilegus and rook are synonyms defined as:

Corvus frugilegus and rook: common gregarious Old World bird about the size and color of the American crow

Corvus frugilegus (noun)	rook (noun)
common gregarious Old World bird about the size and color of the American crow	common gregarious Old World bird about the size and color of the American crow
	(chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard

Corvus frugilegus (verb)	rook (verb)
	deprive of by deceit