I see what you're seeing that look similar to streamers I had a pullet with these so don't lose hope yet. In the picture of its posture it also seems to be standing like a pullet so I'm going to go out on a limb and guess an unusual little pullet.
Keep an eye out for squatting or practicing crowing and let me know if my out on a limb guess was right. Please thank you. Hope it really is a little pullet for you.