Identifying gender

[Kezzahh]

How accurate is this? Based on the feather growth I'd say I have 3 hens according to this so if you have any experience with this let me know if you think this image is accurate.
Kez

 

[sourland]

If you have cochins this is relatively accurate though it may vary some from strain to strain.

 

[Kezzahh]

If you have cochins this is relatively accurate though it may vary some from strain to strain.

I don't actually have cochins but they are bantoms. They're Pekins.

 

[cstephens1987]

My barnevelders followed this as well