Roni - I was so looking forward to finally seeing an answer on the RIR: whether "she" was definitely a pullet or not.
I'm new to all of this too. And although I bought 5 chicks hoping for all females, when I posted pics at about 6-7 weeks I got several comments that maybe even 2-3 were roo's :-(...
So I'm curious to see what gender your RIR turned out to be. My vote would have been a pullet, but I'm a newbie ;-).