Sparrows vs Tits

(Not quite West Side Story, and actually more sparrows vs tit, singular). There's a gang of sparrows about 11 strong. They hang out in this mass of matted branch, stem stuff at the back of next door's neighbour's. The stuff overhangs next door's shed. Sparrows flit from matted stuff to shed roof edge and onto a feeder hanging in a small tree on my boundary with next door. Dominating the back of the gardens. Much too-ing and fro-ing. Tit gets the front of the garden. From the fucia (I hate fucias), holly bush and tall rose to the house eaves and across to the feeder in a tree closer to the houses. On rare occassions tit makes at attempt at the sparrows feeder. Then everybody abandons everything when next door's cat arches his back lazily on the roof of the shed at the back of the opposite garden.