I've just started to breed Cochins. I have blue and black in my breeding flock. I understand that the genetics of this flock will produce blue, black, and splash varieties. I have only found 1 hatchery that sexes day old Cochins and have given up on the thought of being able to do so myself since they hire "experts" which I am NOT. However; from what I have come across, Cochins are fairly easy to sex by about 2-4 weeks of age by appearance. Males having noticeable combs and females having little to nothing. I'd like to sex them as accurately as possible. Any comments or tips would be appreciated.