Looking at this last set of pictures, I'm not certain that that is a pullet. I noticed wattles forming, bright rosy wattles, and at the tender age of merely two months, I'm thinking that she is a HE. At this age, it's not a certainty that the bird is male, just a high likelihood. You may wish to prepare your friends for this possibility so that they'll have time enough to consider their course of action (re-home, process for the freezer, etc.). Regardless of gender, I wouldn't allow this chicken to breed IF your friends intend to hatch out eggs that are inseminated (or laid) by this bird.
Maybe. (S)he is not my chicken, so I’m not too worried about it right now. However, if they do want to get rid of it it may be harder finding it a home, if it’s a roo
. Hopefully it’s a pullet 
! The barred rocks of the same age all became distinguishable about 2 weeks ago, so I assumed it was for this little bugger too! 
