'Scandinavian' Jackdaw

It seems that we may have had a small influx of 'Scandinavian' Jackdaws this winter - these two birds (and at least one other with a stronger white collar) have been seen in and around the 'Monkton Swifts AFC' car park in Monkton over the past few days.  I have also seen a bird with similar markings near the 'Waterloo' (Tesco's) roundabout in Pembroke Dock this winter, and Adrian Rogers saw another near the 'Flagpoles' car park at Fishguard Harbour not so long ago.

A birder friend in Sweden tells me that there are five 'inter-grades' of collar strength - ranging from the 'typical' UK Jackdaws with no collar to Jackdaws from Finland that can have very white collars.