I have 9 chicks that were all suppose to be sexed pullets. I get the 90% accuracy and would be fine with 1 male. 5 are from one feed store and 4 are from another. But, two are no doubt males..red combs/pink faces at ~6-8 weeks old. (Delaware and Barred Rock) Another 3 have very pale pink on their combs and face amongst the yellow, which makes me think they are makes too. (Rhode Island Red, Barred Rock and Leghorn) ( should note the BR has the female traits of small, darker feathers and feet, so maybe she is just splotchy, pale pink and yellow at an early age. 4 are definitely females (Rhode Island Red and 3 EEs...the 3 EEs are the from the second feed store) That means of the 5 from the first feed store, 4 are males. That is worse odds than a straight run! Very frustrating!