I don't know about the rocks, but my Partridge Cochins the boys are really dark, almost black, and the girls are more red. Hope it helps! So it almost looks like you would have Girl, Girl, Boy, Girl to me (last picture is fuzzy, hard to tell)
yea i realized that to but i was doing what they said to do on another thing for sexing which is laying it belly up and then if they turn over they are hens and if they dont they are roos and i think i actually have more pullets than roos
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