I bought a new batch of bantam chicks. I tried a different hatchery...chickens for backyards... and at 6 weeks I am pretty confident in saying 3/8 chicks I ordered are crockerels. 3 barred rocks appear to be Roos out of 5. That's a REALLY bad sex selecting percentage. Anybody else have experience with this hatchery? I should have stuck with MPC. The 3 in question are super grey and have significantly bigger combs. The 2 girls are way more blackish and have tiny combs....Grrrr. Thoughts anyone? Also, how to sex 6 week old RIR with pics please? Thank you!