This morning, Pablo, Tony and I sat in thrall watching the scene out the kitchen window. The squirrels discovered the seed dispenser and were trying different ways to get to it from the yew branches.
The window's a bit dirty on the outside, so couldn't actually get any good pictures. This is a pretty good representation, though (from a sadly not very good movie.)
Resolved: this weekend, I raise the feeder, trim the yew branches back even further, wash the kitchen window on both sides.