Cloverleaf Farm has BBS Bantam Ameraucanas to die for...she is in Western Oregon and is an Ameraucana Club officer....PM her here on BYC.
These birds can be sexed easily most times by counting the 'rows' of "peas" in their combs.
A male will have 3 distinct rows of peas, and a female only 1 row.
I must admit I have had one or two that did a sex change on me after I had them pegged for what they were not...LOL