Partridge Rock sexing?

[Jaybr]

I've got some eggs hatching today, any way to sex the chicks besides vent?

I know about the head spot and leg color on the barred rocks, just wondering if there are any similar methods on the partridge?

 

[roosters97]

hope someone helps!

 

[Jubaby]

It must be difficult, because the the pullets I ordered from a hatchery turned out to be one hen and one rooster.

The both looked the same as babies.