sexing 2 week old Speckled Sussex chicks

[rhs7111]

Is there any method of sexing (or at least making an educated guess about gender) on two week old Speckled Sussex chicks, such as incoming wing feather color perhaps? Would a cockerel chick have more white on the lower wing feather than a pullet chick (both do have white, of course)? Or perhaps a more upright stance? I realize no method would be foolpoof accurate, but a few tips would be helpful for at least hedging my bets. Thanks!

 

[HennyPennyHenHouse]

Would love to know myself as mine are also 2 weeks old. But I've been told it will be 2 months before we know for sure. Would love to hear if someone has another idea?

 

[birdicus7]

My speckled sussex roos developed white flight feathers very early on. None of my hens developed the white flights. I won't guarantee this since this is my first time with SS chicks. They are almost a year old now.