Mamo

Generations of Hawaiian Royalty trapped Mamos and used their yellow rump feathers for ceremonial royal war cloaks. The Kings of Hawaii supposed ruled that anyone who trapped a Mamo was prevented from killing it, and were required to turn them loose once their yellow feathers had been plucked. It’s impossible to say if this was an effective edict, or if the Mamo really wanted to go out without half its feathers.  By the end of the nineteenth century they had almost completely disappeared, probably due to loss of habitat coupled with hunting.