Avian Antics

My car was parked beneath a tree, More gingkoish than oaken; I never noticed birds a’perched, Yet each one left a token. The windshield was opaquely masked; The roof and sides were splattered. They missed the turned-in mirror, Though that hardly even mattered. You really had to give them props; They surely were effective In doing such a thorough job – I held off my invective. We call somebody bird-brain When we denigrate their smarts, But mischief made of droppings Proves their humor’s off the charts!