horse wrangler vs cowherd

horse wrangler and cowherd both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse wrangler	Yes	No	No	No
cowherd	Yes	No	No	No

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

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

Other hypernyms of horse wrangler include cowhand, cowpoke, cowpuncher, puncher.

horse wrangler (noun)	cowherd (noun)
a cowboy who takes care of the saddle horses	a hired hand who tends cattle and performs other duties on horseback