kestrel vs falcon

kestrel and falcon both are nouns.

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

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

kestrel: small Old World falcon that hovers in the air against a wind
falcon: diurnal birds of prey having long pointed powerful wings adapted for swift flight

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

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

kestrel (noun)	falcon (noun)
small Old World falcon that hovers in the air against a wind	diurnal birds of prey having long pointed powerful wings adapted for swift flight
small North American falcon

kestrel (verb)	falcon (verb)
	hunt with falcons