I heard a bird singing today at the top of an evergreen tree in Yorkhill Park in Thornhill. It was a bit hard to see, but appeared to be all grey from underneath without much streaking. It definitely had a notched tail. Right before it flew away, it nodded its head down, and I saw what I thought was definitely a red cap. I was sure it was a Redpoll, until my books told me that Redpolls should be nowhere near here at this time of year. Any thoughts? Could it be a Redpoll? A review of the song sounded similar - but not conclusive. If not a Redpoll, what else could it be?