It's a Redwing, of the Thrush family. Actually they have been here since Autumn from Russia and Scandinavian and it took me that long to finally get a good photo of one, in Railway Land Lewes.
* RSPB Redwings migrate by night in loose flocks. Listen out for their soft seep seep call, as they pass overhead. In autumn, redwings gather along the Scandinavian coast at dusk before launching off on their single 800 km (500 mile) flight across the North Sea to the UK. In rough weather, many may crash into the waves and drown