I'll also add that The word, Shamo is understood to mean Game bird from Japan and Ko means miniature.
So Ko Shamo means miniature game, not miniature version of the large fowl.
Chris
Not to get off track but in the world of poultry I believe there are a few "Shamo type" fowl;
Nankin Shamo -- Male under 1kg/2.20 lbs, female under 0.75 kg/1.65lbs.
Tuzo -- Male above 1kg/2.20lbs
KO Shamo -- Males 1000g/ 2lb4oz Females 800g/ 1lb12oz
Yamato Gunkei -- Males 2kg/4lb4oz Females...