Someone posted this link in another thread:
http://www.wachtelhof-dittrich.de/die-japanwachtel-art-und-herkunft/farbschl%C3%A4ge-der-japanwachtel/
It is in German, but if you scroll down to where it says "Wild Zimt Henne" - meaning "Wild cinnamon hen" - you get something that looks a lot...