I think the buff one's a girl but must agree, all the others look male. The age their gender becomes apparent at depends on their level of nutrition, as well as how well-nourished their most recent three or so generations of ancestors were. Once they're primed for a few generations you can tell the boys at hatching, sometimes, though with mix breeds it leaves more room for guessing.
aww thanks guys !! i love them soo much . i know the lady has one more OEGB but its sick i might go get it and keep it separate from the other ones till its better i fell in love with that breed now hehe