I'm somewhat new to chickens and I got these five ladies on Easter day from our local flea market. They were said to be sex links. I estimate them to be about 18 weeks old. I have two black, one is mostly a solid black, the other has a lot of blue on her back as well as gold/red flecks on her neck and chest. And I have 3 red ones, two look very similar to one another, mostly a darker red on top with lighter red feathers on the bottom and a few very dark feathers in the tail, one girl however has a mixture of much darker feathers on her back and very pretty longer blue feathers in her tail. My boyfriend thought she was a top at one point, but she shows no other signs (that I know of) to indicate roo. None of them have started laying yet, that I've seen anyways, I keep a close eye on the eggs my ladies lay and So far all the eggs I've collected are the normal ones from my other 6 layers. So mainly I'm just curious to know if I do indeed have sex links or if they're a mix and if my one girl is a roo instead?