I always sex mine with an old method. - If you turn your chick gently upside down and part the fluff on their vent - Roo boys have a tiny little mole like a wee little spot but the pullets don't. You can usually see the difference at a day old. I am pretty sure they use this method in factory farming. You have to really look quite hard. I learned this method after I took my chicks to the vet who promptly turned one over to see if it had a w1lly????
I realised there had to be a better way!!!!!!!
Oesdog - Whatever method workd for you I guess - mostly chicken sexing is a Guess!!!!

Oesdog - Whatever method workd for you I guess - mostly chicken sexing is a Guess!!!!