X3 I was thinking they were younger, I am hoping I have girls and no boys already have a RIR Rooster, when will I be able to put them in the coop with the big girls an boy? They're so cute ~ Can't wait til they get their fluff!!!!Babies get poo on their butt fluff. The previous owner my have pulled it off feathers and all. It will very likely grow back.Your chicks look about 3-4 wks. old.