bird of night vs raptorial bird

bird of night and raptorial bird both are nouns.

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

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

bird of night: nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes
raptorial bird: any of numerous carnivorous birds that hunt and kill other animals

Other hypernyms of bird of night include bird of prey, raptor.

bird of night (noun)	raptorial bird (noun)
nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes	any of numerous carnivorous birds that hunt and kill other animals