I think 5 of our 6 blue cochins are roos. I'd love to see what everyone here thinks. In the first picture I have what I think is a roo in the back and (while it's not a great pic), the only blue cochin I have that seems to be a hen. They will be 8 weeks tomorrow. The other pics I think are all boys! I'm hoping its not true, but I'm doubtful.