There are farms around this area which raise game birds, so I suspect an escapee here
No interactions present.
This is not a Chukar, but I do wonder myself just how pure these released Red-legs actually are.
My Flickr photos...
Lat/Lng: 51.871721768624, -1.0297966003418
OS grid ref: SP668196
Nature reserve on farmland, liable to flooding, so numerous pools that attract waders