merlin vs falcon

merlin and falcon both are nouns.

Word	Noun	Adjective	Verb	Adverb
merlin	Yes	No	No	No
falcon	Yes	No	Yes	No

As nouns, falcon is a hypernym of merlin; that is, falcon is a word with a broader meaning than merlin:

merlin: small falcon of Europe and America having dark plumage with black-barred tail; used in falconry
falcon: diurnal birds of prey having long pointed powerful wings adapted for swift flight

merlin (noun)	falcon (noun)
small falcon of Europe and America having dark plumage with black-barred tail; used in falconry	diurnal birds of prey having long pointed powerful wings adapted for swift flight

merlin (verb)	falcon (verb)
	hunt with falcons