Lesser Redpolls?

Over the last few days I have managed to catch 16 Lesser Redpolls at Thornton. Most have been young birds, with well worn and pointed tail feathers. One was an adult female and the tail feathers were more rounded and less worn. All the wing lengths have been in the range 67 to 72, apart from one first winter male that had a wing length of 76. This puts it in the range of Common Redpoll or flammea. I regret not taking more photos of this bird, although it did not appear very different to the other Redpolls.