scrounge vs rustle

scrounge is not a noun while rustle is a noun.

Word	Noun	Adjective	Verb	Adverb
scrounge	No	No	Yes	No
rustle	Yes	No	Yes	No

As verbs, rustle is a hyponym of scrounge; that is, rustle is a word with a more specific, narrower meaning than scrounge:

scrounge (noun)	rustle (noun)
	a light noise, like the noise of silk clothing or leaves blowing in the wind

scrounge (verb)	rustle (verb)
collect or look around for (food)	make a dry crackling sound
obtain or seek to obtain by cadging or wheedling	take illegally
	forage food