I guess if the answer for this was obvious it would save us all a lot of hassel from raising rosoters. However, my uncle is 70 years old and comes from a good farming backround, I was chatting to him about hatching out hens and he reckons he is able to tell if the egg is a hen or rooster before they are incubated? I dont know if this is possible or not to be honest. I was wondering if anyone else had ever heard of this and would know if it is possible. I am tempted to put his theory to the test just to see how accurate he would be. what you think?