We wanted to gain some experience with hatching so we put our Barred Rock Roo with the BR hens and started gathering days later... First batch had a low hatch rate but the second a week later was much better. However, much to our suprise we had TWO of the ten that hatched were YELLOW!!! I know that our BRs are only of hatchery quality but still.... were on earth did that come from? I am positive that the hens were NOT exposed to any other roos for as long as two months or more prior to us letting the BR roo with the hens... The chicks are cute as a button!! They look like they have Barring, as their feathers are coming in... Kinda opposite of an actual BR!!!! Any thoughts.... My first assumption is that the Roo/Hens.... somebodys not purebred!!!!