I have been doing some research on Silkies and I have decided that want to buy a silkie pullet or hen. I have read that it's really hard to tell the difference between a silkie pullet and cockerel at young ages. I found someone that is selling 3 month old straight run Silkies for $5 and another seller that has 4 month old Silkie "pullets" for $15. Is the one month difference in a age make much of difference in correctly gendering them? Should I try to get a older silkie hen 6-12 moths to ensure it is a hen? I really don't want to end up with a roo. I bought some pullets from a lady that has a small hatchery and all of them ending up being cockerels so I'm very cautious