Yes, she is an Araucana. They are rumpless but some may have a few tail feathers (that would disqualify them at a show). They should also have tuffs. I don't see any on her. We have the standard BBR Aracauna. We had 7 hatch this year and 2 have come have double tuffs, 3 have no tuffs at all (they would be disqualified at a show but would be okay for breeding to a double tuffed) and 2 with one tuff on one side. This is a difficult breed to hatch as it carries a lethel gene and you do not always get rumpless and tuffs. All of our chicks are rumpless. Your chicken looks like her color may be Black Breasted Red which is what ours our.