Managed to grab a quick hour at Kingsbury water park after work, and there was a bit more open water with a few more birds.
A quick walk around told me that most of the birds were gathered on Broomey Croft with 2 Wigeon and 5 Pochard present and an almost summer plumage Black Headed Gull.
After an hour in the cold I decided to head for home, noticing a flock of 40+Fieldfare in the left hand fields heading towards Bodymoor Heath.