With mine, I got a pretty good idea by running my index finger up the beak and comb. My 2 boys had a bump toward the top, the girls were smooth! Now they are older and I was right, 2 boys, 6 girls. The girls are still somewhat smooth and the boys "bump" got bigger and they grew their streamers! Mine are SQ birds
They are almost 15 weeks old now! I know this isn't a sure-fire way to tell but the breeder I got them from said he can usually get a pretty good guess by doing this.
