Things that go bump in the night

CRASH! it was something falling onto the deck, it was a familiar crash, the twice weekly six o'clockish crash that is always followed chittering and chattering. A victorious chittering and chattering that for them signals conquest. The scene outside the living room window is one of comical chaos. Bird seed, thistle and black sunflowers are spread wildly across the cedar decking. Three short, squat individuals, thick and heavily furred are rolling on top of each other, engaged in an odd sort of high five, a fourth one investigates the birdseed booty. I tap on the window and they pause from their follies, I tap again and slowly they lumber away, out of sight and off to another nightly neighborhood noshing.