I fully agree with Les Cornthwaite, that to see a sparrowhawk on the attack is a magical source of wonder, even if it means the sudden death of a much loved songbird.
I was once lucky enough to see one catch a ring-dove twice its bulk, on a small lane in Beeley, near Chatsworth. I stopped the car, got out, and tentatively walked nearer, whereupon it picked up its prey and flew low over bushes into a field, to enjoy its meal in peace.
This, to my eye, is a far more agreeable force of nature than, say, the fox in a hen coop, that tears off heads for the fun of it.
Knab Road, S7