Originally Posted by kjk66ss
isnt the color sexing only on the sex link chicks?
Actually, the Barred Rocks and Dominique are a kind of feather auto-sexing. The hatched chick has a head spot. The cockerels head spot is irregular, while the pullets have a small, round head spot. This is not sex link differentiating, but just using the natural, auto sexing feature the breed has. At five weeks of age, as the chicks feather out, we get yet another auto sexing opportunity to see the differences in the pullet vx the cockerel. As I said above, the difference is start and not difficult to see. I use the Barred Rock as an example because I have raised them for decades and am most familiar with them.
Really, really keen eyes are also able to see small differentiation between the sexes in the feather patterns in other breeds as well. The secondary sex characteristics come later, ie, pointed feathers, combs, wattles, saddle feathers, etc.