Not quite on Big Moor but the starlings above Stoney Middleton on Middleton Moor have been amazing. I have been 5 times so far to see them and no doubt will go again before they disperse in March.
Here is one of three videos I have posted on You Tube. I am not really geared up for video so the quality is a bit average. However if you follow my link to You Tube there are some excellent videos done by people far more professional than me!