We don't often get wigeon at Radipole Lake, they much prefer the grassier parts of Lodmoor, or better still the eel-grass beds of the Fleet a few miles to the west.
But if Lodmoor is seriously flooded or frozen up some of them will fly over to Radipole to look for better grazing.
Then the North Hide allows you to get much closer to them than you can at either of the other two sites.
The second half of the above video features a very aggressive drake, which is different from the others in that it always keeps its tail held down in the water.
All the other drakes hold their tails up.
I wonder if this is a sign of dominance, the "top duck".
Then the flock walked up onto the grass just in front of the hide and I got an even better view.