Cinclus mexicanus vs dipper

Cinclus mexicanus and dipper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cinclus mexicanus	Yes	No	No	No
dipper	Yes	No	No	No

As nouns, dipper is a hypernym of Cinclus mexicanus; that is, dipper is a word with a broader meaning than Cinclus mexicanus:

Cinclus mexicanus: a water ouzel of western North America
dipper: small stocky diving bird without webbed feet; frequents fast-flowing streams and feeds along the bottom

Other hypernyms of Cinclus mexicanus include water ouzel.

Cinclus mexicanus (noun)	dipper (noun)
a water ouzel of western North America	small North American diving duck; males have bushy head plumage
	small stocky diving bird without webbed feet; frequents fast-flowing streams and feeds along the bottom
	a ladle that has a cup with a long handle