Well, this squirrel seems to be a trouble-maker. (NOTE: He is an adolescent fella.) Every so often, he hop-hop-hops past the birds, arms and legs wide to present a Big Squirrel persona, threatening to hop on top of them. The robins hop away, then stare at this freakish little beast for a while. You can almost hear them thinking, "Since when have squirrels become predators? Hm, doesn't seem to be pursing me. Damn kids."
One of the robins has decided to turn this on the squirrel, hopping at him with wings a-flutter. Squirrel mostly ignores this.
I love my little wildlife shows!