Like the swallows returning to Capistrano, each spring the robins become protective of their specific nesting grounds. We have one such red-breasted fellow in our yard who returns each year to find a rival firmly ensconced in his territory. And so he goes on the attack, launching himself over and over at the marauding fiend only to bash himself an invisible, never-yielding barrier that separates the two. For days or sometimes weeks he continues until the sun has moved higher in the sky, dissolving the reflection in the plate glass door.
Perhaps someday he will learn that each year the same faulty conclusion and aggression leaves him fighting with himself. Or perhaps someday he will win, but that victory will cost him his life. But for now, I am grateful for the allegory and the sure sign of Spring.