Cuculus canorus vs European cuckoo

Cuculus canorus and European cuckoo both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cuculus canorus	Yes	No	No	No
European cuckoo	Yes	No	No	No

As nouns, Cuculus canorus and European cuckoo are synonyms defined as:

Cuculus canorus and European cuckoo: common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds

Cuculus canorus (noun)	European cuckoo (noun)
common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds	common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds