This Squirrel Wants a Piece of Lambchop

There's this squirrel now, always sitting in the tree outside my balcony, just tearing Lambchop a new one.
By that I mean he chatters away at her as ferociously as he can, and thumps his little tail up and down. Maybe he has a nest up there...
But by the look in her eyes, I think Lambchop might want a piece of him too.