Rumbull - I love that barred rooster! I have developed a strain of barred Plymouth Rock that have peacombs and lay blue/green eggs. (From crosses with what were probably what you call over there "Easter eggers) A question for the learned ladies and gents on here - if I put a Lavender Araucana rooster over the barred hens would the barred colour be dominant?
A Lav male over Barred females will produce sex linked offspring. The males will all be Black Barred and the females will all be solid Black.
All of the resulting offspring will also be split to Lavender, breed the Black barred cockerels to their solid Black sisters and you should end up with a percentage of Lavender Barred chicks.