Breakfast

We saw this bird on our next door neighbour’s lawn this morning.  It had obviously just caught a small bird and was tucking in.
 
It stayed long enough for me to get my camera and take some sneaky shots through the window.   I’m not sure what sort of bird it is, well I know it’s a bird of prey, possibly a sparrowhawk, but I’m sure someone will enlighten me.
 
He/she stayed there quite a while leaving just a pile of feathers on the grass.