I originally saw this strip a sort of sad commentary on aging. The surface joke prompts us to imagine notorious outlaw Billy the Kid — whose very name marks him as one of those figures who will remain forever young by virtue of an early death — as a stooped, doddering old man. Similarly, it must be the case that the Perfesser was, at one point in his life, young and vital, and yet now he slouches in his easy chair, his failing eyesight forcing him to sit far too close to the television, his living room strewn with garbage. But then I thought: maybe all the newspapers on the floor are somehow related to his bird-man nature? You know, because humans line the floor of birdcages with newspaper? For birds to poop on? Screw meditations on old age, I just want the strip to acknowledge that its characters are birds, just once, just once.
Speaking of old people, here’s Crankshaft shitting on his friend’s hobby, just to be a jerk.