My first visit to Hatfield Moors, & think I had a bit more success with the Redpoll's, with a few good candidates for Coue's Arctic Redpolls amongst the 100-strong flock I located just after midday at the north end of the track a few hundred metres past the last prison building and fence, by Prison South Lake I think it is called. I watched them for 30 minutes before being joined by three other birders. We watched the birds, but many were out of view on the ground and although they sometimes took to flight they generally favoured & returned to the same bushes and trees by the track. Thing is, not sure any possessed the full suite of features, well not for a classic adult. There were at least 50 mealies, many of which were obvious birds wih big bills and heavily streaked flanks. I had a large, very pale bird with pure white undertail coverts (can Mealy show this characteristic?) before I was joined by the other three. It had some flank streaking but not obviously bold like most of the mealies. Did not see the rump unfortunately. Then after being joined by the others we had a good number of large pale birds dangling in the tree low down, mostly Mealies but again a few Arctic candidates including a bird with bristling white wingbars, clean white underparts with subtle pink wash to breast and rump. It was hard to determine if we were looking at different birds each time they took off then resettled. Another whitish bird had a pale rump, and just before the birds were unsettled by a horserider a very pale, bull-necked bird with no undertail covert markings (all white) showed briefly. That was the best candidate probably with its rich, buffy, broad head. They eventually moved away from this area, back towards Dragon Pits.
The flock of 100-plus was later in Dragon Pits around 2pm but very flighty and hard to watch with a wrong sun angle.