Ahh, okay. I was trying to see the earlobes, but I couldn't really tell.They could have been sexlinks or Production Reds, but if you've only got females there's no real way to sort them out. The males would be different colors, but all the females would be red in any case (with either kind able to have black tails.)
Leghorns are supposed to have white earlobes, and that bird appears to have red ones.
I suppose it will become clear when she starts laying eggs. Leghorns lay white eggs, but Production Reds lay brown eggs and so do all of the other types we've been talking about.