Gender? Atleast 2 months old(not really sure)

[Rustichomesteader]

 

[JedJackson]

Silkies often take a long time to tell gender. It's difficult to get a measure of their combs in the photos because of their crests, but in general females should have small flat combs until they are at least 14 weeks old. Males will get some height to their combs much earlier, usually.