Silkie sexing

[chickenhappy1233]

I’m usually pretty good at this but this is my first time having silkies and they are definitely a little harder to sex. Anybody know what gender they are? My guess is that the black one is a roo because it’s got some solid comb development but the white one has me stumped. They are about 7 weeks old

 

[Tookie]

Much too young to know, but I'll say both are cockerels.

 

[chickenhappy1233]

Alright it’s been about 3 weeks and they are about 9 weeks old now, I haven’t noticed much of a change but I’m still guessing they are both cockerels. White chick is significantly bigger than the black chick

 

[SuperMurshy]

I'd say both are cockerels as well

 

[Tookie]

Alright it’s been about 3 weeks and they are about 9 weeks old now, I haven’t noticed much of a change but I’m still guessing they are both cockerels. White chick is significantly bigger than the black chick

Still thinking cockerels.

 

[Party_Chicken]

Both are cockerels

 

[Climbingalbatross]

Cockerels based on comb and uneven crest.

 

[aryucrazy]

What's up with black chick's beak?