Bird of night and Raptorial bird

Bird of night noun - Nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes.

Raptorial bird and bird of night are semantically related. In some cases you can use "Raptorial bird" instead a noun phrase "Bird of night".

Raptorial bird noun - Any of numerous carnivorous birds that hunt and kill other animals.

Bird of night and raptorial bird are semantically related. Sometimes you can replace phrase "Bird of night" with "Raptorial bird", this phrases are similar.