A tit's wings fanned in flight

I sat at the open door with a cup of tea to see what happened. The young tits were the most common birds and proved to be rather fun to watch. The squirrels were annoying and are becoming a problem as they think the bird food should be for them alone. 

I'm trying to think of ways to overcome the problems they cause. I found one inside the house a few days ago. I'm not sure I want Bomble getting into a fight with them as I expect they can be vicious, and despite getting on in age, he is always up for a fight, with cats at least. We also found parts of a bird around the house yesterday, which is a shame.