I have 4, 8-9 week old chickens. 3 are hens, 1 is a rooster. I've just been to a farmer's market, and saw a whole cage full of chickens that look JUST like mine, only a litle bigger. The man that owned them said they where white rocks. But, I've been looking up white rock pics, and they all have red combs! Mine and the man's at the farmer's market, have yellow combs. Do they're combs change color? Also, I've heard that my chickens are Leghorns, since they're so light yellow, almost white. They're TSC chicks and they're booklet said they're either, Leghorns, barred rocks, australorps, NHR, or RIR. I know they're not the last 4. HELP! Could they be Plymouth Rocks? - M.P.