Down sexing?

[chickiemama27]

I have been reading about down sexing and I’m having difficulty. Does anyone have any experience? Our Cochin is serving as a surrogate for some of our other hens. The yellow baby with a few black splotches has a buff laced polish mama and a EE bantam daddy. The other chick was from a standard EE and an EE bantam daddy. We don’t want anymore roos and trying to sex these cuties! Thank you!

 

[JacinLarkwell]

Only works with specific crosses

 

[chickiemama27]

Only works with specific crosses

Thank you! I didn’t realize that!