Would have thought this time of year ,chicks to feed could be ruled out .
I have seen Sparrowhawks swooping at my feeders but not a catch as yet , even though I get attached to the Goldfinch I would love to see a Sparrowhawk take one just for the spectacle, I know it sounds cruel but that's nature.
A few years ago my next door neighbour's had a very large clematis on the front of the house and it had a roost of sparrows in it and a Sparrowhawk used to use it like a takeaway .