raptorial bird vs bird of prey

raptorial bird and bird of prey both are nouns.

Word	Noun	Adjective	Verb	Adverb
raptorial bird	Yes	No	No	No
bird of prey	Yes	No	No	No

As nouns, raptorial bird and bird of prey are synonyms defined as:

raptorial bird and bird of prey: any of numerous carnivorous birds that hunt and kill other animals

Other synonyms of raptorial bird include raptor.

raptorial bird (noun)	bird of prey (noun)
any of numerous carnivorous birds that hunt and kill other animals	any of numerous carnivorous birds that hunt and kill other animals