3 week old lavender orps

[HenHouse10C]

I have 3, 3 week old lavender orps. Can some help me guess genders? One is much bigger than the other two and has thicker legs and more feathers.

Headshots in order of the picture from left to right

 

[BantamLover21]

So far, they all look like pullets.

 

[Wyandottes7]

So far, they all look like pullets.

x2

 

[HenHouse10C]

x2

I'll be so, so lucky if this holds true!! I got them "unsexed". The breeder didn't sex them as hatchlings so choosing just pullets wasn't an option. These three were just pulled at random right out of their newborn brooder. My fingers are crossed!

 

[HenHouse10C]

Around what age do orpingtons typically start growing red combs and waddles if they're cockerels? Can anyone help please?