percher vs worker

percher and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
percher	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of percher; that is, worker is a word with a broader meaning than percher:

Other hypernyms of percher include actor, doer.

percher (noun)	worker (noun)
a bird with feet adapted for perching (as on tree branches); this order is now generally abandoned by taxonomists	sterile member of a colony of social insects that forages for food and cares for the larvae
a person situated on a perch	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done