The traditional Jackdaw

I say the Traditional Jackdaw as there seem to be more 'Pied' Jackdaw the normal one near us.
You can see by it's stance why they say it evolved from the 'Raptor'!
Was almost caught out on this one as I had my 150-500 Sigma on the D800 at the time,when suddenly a group of three appeared on the flat roof outside my window,which was,needless to say,closed! So having to re-crop to 270mm and re-focus to about 3 meters,I managed to grab about 6-8 shots. This is the best shot to show off it's aggressive stance I feel??