Thank you for the info! This is fun!
A random 4H hatch is my vote.
Exchequer I am not super familiar with, but I know they too are mottled.
Nats idea of breeding would be neat, and hopefully wouldn't cause more of a mystery!
Thank you again for sharing all the info. Looking forward to...
@NatJ
Any insight on the genetics question here?
incredibly interesting bird here. Def not typical. You are right, it does look like a cockerel legbar plumage, but then it doesn't. And that tail is something else.