I have an almost 23 week old Cochin that I received as an extra in my order from Murray McMurray Hatchery and I'm not quite sure what gender it is...I'm leaning towards rooster, let me know what you guys think! Also...I have not heard it crow, but it does seem to make a deeper sound. For the most part the other chickens leave it alone too so I've never seen it fight with the roosters or try to be bred by the roosters...maybe because it is so much larger than most of the other chickens.