My Pet Chicken hatchery and sexed bantams

[Sword]

I noticed the MPC sells sexed bantams. How is there accuracy? How come they can do it, when no one else in the universe can?

 

[goldfinches]

I don't know how they do it, but I have 8 from them and they were sexed properly. But, my roo only has one wattle...

 

[BookWorm243]

They did great with mine, got all pullets