percher vs animal order

percher and animal order both are nouns.

Word	Noun	Adjective	Verb	Adverb
percher	Yes	No	No	No
animal order	Yes	No	No	No

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

percher: a bird with feet adapted for perching (as on tree branches); this order is now generally abandoned by taxonomists
animal order: the order of animals

percher (noun)	animal order (noun)
a bird with feet adapted for perching (as on tree branches); this order is now generally abandoned by taxonomists	the order of animals
a person situated on a perch