Killer in waiting

For a couple of weeks now the flock of sparrows that had been coming into the garden regularly throughout the day seem to have deserted me. It isn't only them but also the small blue tits and hedge sparrows. Even when I go outside and listen it is very difficult to hear any birdsong in the local area apart from the wretched seagulls that wake me at 4am and continue their manic squawking throughout the day because they have their young around.
Yesterday evening I spotted the real reason for the silence and lack of hungry feathered friends to the bird table. On the roof across the road, in the bright evening sunshine sat that blessed sparrow hawk. It did look a splendid sight but unfortunately I think this is a particularly stupid member of this species because no little bird in it's right mind is going to fly anywhere near the vicinity of these houses where it is likely to end up as dinner for the sparrow hawk.
I don't think it realises that when it sits right on the top of the roof it's like a beacon and every little bird within a half mile distance can spot it for the predator it is so they are not likely to take any risks because they are smarter than that!
Perhaps someone could point it in the direction of the city centre where it will find a plentiful supply of ferile pigeons that will make a better meal than my little sparrows. It's just a pity that it isn't big enough to tackle the blessed seagulls because there are more than enough of them. They are messy, as I know only too well, and noisy and they should all be chased back out to sea. Not only that, I don't trust the blighters when they are on the ground as they give you the 'evil eye' as you walk past and look as though they are going to peck your eyes out.