They are 10 weeks and 13 weeks old, I think. I got them as chicks from TSC. At first I was thinking they were all roosters, but then I realized that my sex link pullets the same age all have reddening faces, reddening combs, and red wattles now. So...I'm confused. The rocks don't have combs that are growing larger and large like the Marans roos of the same age. Sorry for the cell phone pictures. My real camera's battery is dead. Also, some of the pictures might be of the same bird. I was chasing them around and they have never seen my red cell phone before. It scared them! lol The Maran right behind the Rock is a roo and is the same age. I have 3 Columbian Rocks and 2 White Rocks and they all look pretty much the same as far as combs and wattles. They all also look similar for their tail and saddle feathers too.