I didn't notice the brown one in the background. Coincidently we have two chickens and the other one is brown. I don't know what type it is. It is an ex battery hen which was a scrawny thing with hardly any feathers when we got it. It now has full plumage and has put on a bit of weight.
You're right - wasn't thinking when I typed my original response.
Hmmm, what color eggs does your brown hen produce?