monarch vs male monarch

monarch and male monarch both are nouns.

Word	Noun	Adjective	Verb	Adverb
monarch	Yes	No	No	No
male monarch	Yes	No	No	No

As nouns, male monarch is a hyponym of monarch; that is, male monarch is a word with a more specific, narrower meaning than monarch:

Other hyponyms of monarch include Capetian, Carlovingian, Carolingian, czar, tsar, tzar, emperor, king, Rex, Merovingian, Shah, Shah of Iran.

monarch (noun)	male monarch (noun)
large migratory American butterfly having deep orange wings with black and white markings; the larvae feed on milkweed	a male sovereign; ruler of a kingdom
a nation's ruler or head of state usually by hereditary right