junebuggena
Crowing
Think I already mentioned on a previous thread, that rooster is most definitely NOT an Australorp. He's got yellow skin, which means he's either a Jersey Giant or a mixed breed. The most likely mother is one of the Reds. The Orpington, Australorp and Sussex hens would produce white skinned offspring. The Barred Rock hens would have passed their barring to any male offspring. With those breeds eliminated, that just leaves the RIRs.