resplendent quetzel vs quetzal

resplendent quetzel and quetzal both are nouns.

Word	Noun	Adjective	Verb	Adverb
resplendent quetzel	Yes	No	No	No
quetzal	Yes	No	No	No

As nouns, quetzal is a hypernym of resplendent quetzel; that is, quetzal is a word with a broader meaning than resplendent quetzel:

resplendent quetzel: very rare Central American bird; the national bird of Guatemala
quetzal: large trogon of Central America and South America having golden-green and scarlet plumage

Other hypernyms of resplendent quetzel include quetzal bird.

resplendent quetzel (noun)	quetzal (noun)
very rare Central American bird; the national bird of Guatemala	large trogon of Central America and South America having golden-green and scarlet plumage
	the basic unit of money in Guatemala; equal to 100 centavos