“Americana”? And silkie sexing

[Edahlinger]

I believe they are 10-12 weeks old. The silkie recently developed “streamers” and had more of a red comb and wattle than his siblings. The other 3 Are Americana? I believe

 

[SilverBirds]

Everyone (except the silkie, I have a hard time sexing them) appears female.

 

[Edahlinger]

Everyone (except the silkie, I have a hard time sexing them) appears female.

Thank you