Sunday I saw a pale redpoll at Aså, Northern Jutland amongst 500 Mealy Redpoll. The bird was rather easy to pick out of the flock due to the colder and paler colour of the upperparts. Unfortunately the bird was only seen very briefly since the flock was very "flighty". But I managed to get a few pics which can be seen in these pictures:
IMO several things point towards an Arctic Redpoll such as the colour of the upperparts, the very pale underparts with rather limited flank-streaking, rather small bill (difficult to see from the pics), the white rump (although the exact distribution of white is impossible to see) and the very pale face-region with a cream-yellow colour in the face and upper part of the breast.
For several pics of exilipis Arctic Redpolls see the galleries on Netfugl and Tarsiger.
In hope of informative inputs...
Best wishes, Rune Sø Neergaard, Aalborg, Denmark