re possible parrot
Agree with other Geoff and Dave this looks good for  a parrot, though would not be sure from just a single image. It looks a bulky necked bird with the heavy sharp angled bill and from what I can see the tip of the lower mandible doesn't protrude above the upper, a feature noted in Van Duivendijk. There a published images of recent birds in Kent which look less convincing than this bird.