hackle vs plumage

hackle and plumage both are nouns.

Word	Noun	Adjective	Verb	Adverb
hackle	Yes	No	Yes	No
plumage	Yes	No	No	No

As nouns, plumage is a hypernym of hackle; that is, plumage is a word with a broader meaning than hackle:

hackle: long slender feather on the necks of e.g. turkeys and pheasants
plumage: the light horny waterproof structure forming the external covering of birds

Other hypernyms of hackle include plume.

hackle (noun)	plumage (noun)
long slender feather on the necks of e.g. turkeys and pheasants	the light horny waterproof structure forming the external covering of birds

hackle (verb)	plumage (verb)
comb with a heckle