WTGs should have straight combs yellow legs and look similar to Welsumers. There is some variation in coloring but are more uniform in appearance than the Blues. They do not breed true.
WTBs are a wide variety of colors. I’ve had pure white, barred, wild type, pure black. They will breed true...
So I for sure through this little one would be blue but all the feathers are coming in white. So I guess white bantam Cochin.
Having never had bantams can it remain with my large fowl or should I be looking to rehome?