You can look @ their feathers the girls will have 2 diff lengths while the boys will all be the same
That only works if you breed for it. Not accurate other wise. I forget the cross..... the sire has to have a slow feathering gene and the dams fast feathering..... or vise versa. You can't just randomly breed chickens and then feather sex them.

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everybodies hatches go this well. I just hatched 20 out of 24 !!
