So I have a chicken that has started crowing and looks noticeably different than the other chicken of the same breed (silver laced wyandotte). I just want to get other opinions as well that this is in fact a rooster. Assuming it is so, what precautions do I need to take to make sure he doesn't fertilize any of my hens? I read somewhere that a good age to process dual purpose birds is between 4-5 months with a penning period of 2 weeks before processing to "fatten" them up (because they are free roaming). Is this correct? They are currently 12 weeks old. This is the one that crows. This is the one that doesn't crow.