Sparrowhawk chicks and their father feeding them

We had a very clear view of the three Sparrowhawk chicks and their father feeding them this afternoon, I managed to get a photo through the scope, it's  not that clear but at least you can see the white chick feathers.  Later I saw a male sparrowhawk flying over Streatham Tescos - my guess it was this one looking further afield for food to keep his three chicks happy - he looks noticeably slimmer as all his energy is put into the chicks.