I have four 2 week old BLRWs. Plus other colors, but my goal for the blues is 3 - 4 hens and a roo. Now, I've looked all over the wyandotte threads and it seems like by three weeks old the Roos are getting obvious with combs and wattles. My breeder is asking if in going to want anymore. My chicks will be 3.5 weeks old when more are available. I really don't want too many because the guessing game drives me crazy and I can't pick favorites!!! You think I'll have a decent idea in pullet/roo count by then??