Looking like a pullet so far.Araucana have no tail bone, no tail nub. Yours looks like it has a tail, just no tail feathers yet. Another member here talked about having delayed tail feathers in the EEs she'd gotten from some hatchery, can't recall now which one. They ended up with normal tails eventually, just took longer than usual. And no, it had nothing to do with gender although that's a popular claim.