All but one of my hatches this year were mostly roos. I gave up when my last hatch was 8 boys, 2 pullets. At the end of the season my total was 31 roos and only 11 pullets. I used both an LG forced air incubator and a Brinsea ECO 20. Is there anything I'm doing that would cause far more roos to hatch than pullets? Or did I just have really bad luck? -Cindy Oh, forgot one other hatch. So my total for the year was 35 roos, 12 pullets.