As the title says - we're baffled. 12 weeks old and we have no idea what's going on with this "guy." This chicken is BIGGER than all of the other blue guys - we're sure the other blues are cockerels due to their long and curving tail feathers and pointy saddle feathers. I thought this guy was a rooster also but now I'm totally doubting it. The mystery chicken is HUGE, and has quite a red comb, but the butt is totally different and the saddle feathers are more ambiguous. Have a look: Here he's in the middle: Here, on the left with the other two that I'm sure are roosters - see the difference?: And the whole package, with red comb: Thoughts? Time is a factor, as I'm selling a couple of the roosters tomorrow and I'd like to sell this one also if he's a roo!