|Nigel, I respect your special knowledge and don't contest your reasoning, but it is fair to mention why I opted for gentilis.
The fact that Maurizio thought this was a buzzard made me think of buzzard size and a sparrow hawk is smaller, even the larger female. Secondly I knew this was not a juvenile because of the barred breast. I have taken a similar photo of a juv gentilis and therefore thought this would be an adult female.
Thanks for your help!
Accipiter nisus (72) *