I managed to get a photgraph of the sparrowhawk which has been operating in my garden for the last few days.
Woodpigeon is an impressive prey item for Sparrowhawk, only the biggest females take prey this size since unlike Peregrines, they cant hit them from a dive, and have to cope with taking a bird out of a horizontal pursuit which in this case, is their own bodyweight. or heavier, so this was an impressive feat, and obviously a good meal, particularly as she would only be feeding herself at the moment. This suggests she is on territory and would be nesting nearby come late April/early May. Look out for the smaller male, similar plumage but nearly half the size and with an orangy barring to the chest and flanks.