I'm brand new to the forum and to raising chicks! We have 5 chicks: 2 RIR/Aruacana mix and 1 white chick that are almost 8 wks. old; 1 Black Austrolorp, and 1 Barred Rock that are 5 wks.old! The younger ones we got at the feed store and are suppose to be pullets (99% sure). The older three I brought home from the school where I teach. I was a sucker for those little balls of fluff! Would you please help with identifying what breed and gender the white one is and confirm my fears that the RIR mix is a roo? Thanks!