wrangler vs cowpoke

wrangler and cowpoke both are nouns.

Word	Noun	Adjective	Verb	Adverb
wrangler	Yes	No	No	No
cowpoke	Yes	No	No	No

As nouns, cowpoke is a hypernym of wrangler; that is, cowpoke is a word with a broader meaning than wrangler:

wrangler: a cowboy who takes care of the saddle horses
cowpoke: a hired hand who tends cattle and performs other duties on horseback

Other hypernyms of wrangler include cowhand, cowherd, cowpuncher, puncher.

wrangler (noun)	cowpoke (noun)
a cowboy who takes care of the saddle horses	a hired hand who tends cattle and performs other duties on horseback
someone who argues noisily or angrily