Stevie,I think some years are worse than others 3 years ago i was plagued by sparrow hawk ,i had 3 killed 4 doos i was able to chase off hawk and 2 disappeared 8 strikes i witnessed .This year one attack ,I know it just sickens you but we just have to put up with it or pack in nae easy solution i am afraid.I live in terraced housing 6 gardens (neighbours) have all witnessed hawk attacks in there garden,yes my doos .