It's a "sparrow Hawk"

local custom tells me , if it hunts chickens it's a chicken Hawk, if it hunts pigeons it's a pigeon Hawk, etc.....
...but seriously, the blotched back, as you say would indicate juvenile something, seems a bit late for juvenile anything, but at this point who knows.
The storms with hight winds from the South have blown some birds off their usual migration routs, so could be anything ?