American kestrel vs falcon

American kestrel and falcon both are nouns.

Word	Noun	Adjective	Verb	Adverb
American kestrel	Yes	No	No	No
falcon	Yes	No	Yes	No

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

American kestrel: small North American falcon
falcon: diurnal birds of prey having long pointed powerful wings adapted for swift flight

American kestrel (noun)	falcon (noun)
small North American falcon	diurnal birds of prey having long pointed powerful wings adapted for swift flight

American kestrel (verb)	falcon (verb)
	hunt with falcons