I can't tell if those are the bird in front's streamers, or the tail from the bird in the back! Can you get a level profile of the bird in question (without another bird in the background)?
I say pullet. I think what appears to be streamers is coming from the birds tail behind it. A better pic (with no other bird behind) would be awesome, specifically a good side pic of it's head.
I say, "I CAN"T TELL!!!" It's hard to tell from the picture to me. Looks rooish from the little pin feathers on the top, but I've had pullets that look the same........oh...the agony of not knowing...been there...still doin it!!!!!