I hatched these chickens 4 months ago. The red & black one is Buff Orpington over Australorp. The buff-colored, barred one is BO over ??? The moms were the brown egg layer assortment from McMurray Hatchery. The BO/Australorp has me befuddled. It has always had a big comb, but its two identical siblings developed definite sickles on their tails a few weeks ago. They have been rehomed. This one seems to have a blunt tail. (Black spots on comb are the result of a fowl pox outbreak we are going through. ) I'm pretty sure the buff is a rooster. He's also HUGE - a good bit bigger than his 14 hatch mates, who all came from the same dad and big hens. Hens or roos, and what is the barred buff crossed with?