hoactzin vs Opisthocomus hoazin

hoactzin and Opisthocomus hoazin both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoactzin	Yes	No	No	No
Opisthocomus hoazin	Yes	No	No	No

As nouns, hoactzin and Opisthocomus hoazin are synonyms defined as:

hoactzin and Opisthocomus hoazin: crested ill-smelling South American bird whose young have claws on the first and second digits of the wings

Other synonyms of hoactzin include hoatzin, stinkbird.

hoactzin (noun)	Opisthocomus hoazin (noun)
crested ill-smelling South American bird whose young have claws on the first and second digits of the wings	crested ill-smelling South American bird whose young have claws on the first and second digits of the wings