We have a gang of jackdaws here, and for the last year or so I've been feeding them with anything and everything. I have one that now feeds from my hand, and another who sits on the windowsill inside.
They really are comical, not frightened of seagulls at all, and they think nothing of having a go at next door's cat.
As well as them, and the usual sparrows, starlings, pigeons, there is a resident kestrel. I've never seen him have a go at the local birds, but I have seen him with mice in his claws.