I bought three BR chicks from TSC in March. They're beautiful and healthy but looking to be all Roos. So local organic foods store had chicks for sale and advertised 3 BR pullets. I bought them but got home and checked them out and now I'm worried and confused. They're almost fully feathered but 1/2 the size of my BRs and supposedly only one week younger. They have the barring of BR pullet, but have red combs and wattles already. Did I buy three black sex link Roos?