Yesterday NE.London, one for Rother......he's the man to sort it out!
In my opinion it's a Goshwak! Clearly bigger than the Sparrowhawk in the "example" photograph and the accompanying carrion Crown, with longer and more bulging head, thicker tail, wider "hand" (note the thinner forewing of female Sparrowhawk) and bicoloured head (for the greater contrast between dark cheeks and pale throat, easy to see if you lighten the photo...).
If you need assistance in getting to grips with Accipter gentilis ID, you know where to come.
Quite right lads!...the interesting aspect is that on length there’s not much in it...compared to the official size differential of 46cm and 37cm respectively for Corvid and female Sprawk, thus it appears that female Sprawks might well be enjoying a greater size differential than currently appreciated?
Thanks Ken, very droll. Not sure which made me laugh more, your implied offer of help with Goshawk identification or your misspelling of Accipiter. Or did you mean that BirdForum is the place to go?
How certain are you (or anyone else) that this wasn't a Jackdaw, and hence, a male Sparrowhawk?