Breed of extra chick?

[christine9]

My RIR's had dark beaks & were a lot darker at 1 day old.But, mine came from a breeder, so Id imagine some differences there.
However, she does look a lot like the RIR chicks at the very bottom of this age
http://www.feathersite.com/Poultry/CGP/Reds/BRKRIR.html#RIRChik

She does look like some of them! Amazing. Thank you!!

 

[christine9]

Here she is now at six weeks old...