I had almost the same thing happen to me when I first started with chickens. I went to buy 6 barred rock chicks from a small family farm. They were advertised as straight run. They had a couple of hundred in a big tub like the ones that Tractor Supply uses for their chicks. They all had light dots on their heads. I did not know that the dot indicated males. All went in the freezer when they were grown. My guess is that they ordered roos because they were cheaper and sold as straight run. One of my early chicken lessons learned.![]()
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From what I remember being told male barred rocks have an uneven bigger spot as chicks and females have a smaller more rounded spot as chicks on their heads. But I could have it backwards