Online research with regards to this topic is either difficult to find or nonexistent. Sexing of some breeds can be determined by examining wing feathers & I believe the sex of all breeds can be determined by examining genitalia. Although the later might be necessary for some, I find it invasive & a method I would rather avoid if a less invasive alternative exists. My theory is that the sex of this breed can be determined solely on Comb Size regardless of age. I base this on the size & mass of the roos comb as compared to other breeds. Certainly there has to be recognizable differences to include very early stages of development. My 6 chicks were born April 6th of this year. Today is their first week anniversary. Hopefully these photos will give everyone a sense of what their combs look like in person. Each one has been banned so I can keep accurate records throughout their development. The color of their band is indicated on the photo along with corresponding numbers. I also included what I perceive to be male & female...talk about going out on a limb. If anyone would like to guesstamate male vs female please chime in & opinions welcome. Thank you!