Sparrowhawks Are There To Many Of Them ?

Hi Guys

I am interested in what people think about sparrowhawks i for one think there are far to many of them. I know people were i live wont put out food in the garden anymore as the hawks are killing a lot of the birds and if your a pigeon keep then you will have even bigger problems.  i did read a while back that sparrowhawks are having a big effect on small British garden birds. Do you guys think there needs to be something done to cut back on sparrowhawks ?