A pair of pigeons seem to have just considered and then rejected the top of my bedroom air conditioner as a potential nesting spot. As I watched their pacing, darting investigations of its surface, I began to fret about the consequences of having unwanted cohabitants such as they. Was there a humane way to discourage them? Would I have to make a habit of looming in the window like some toothy predator, even though most New York birds seem to have decided that any six foot mammal can safely be filed under “patsy” rendering that strategy laughable? Was it ungenerous even to wish them gone? Their own dismissal of my accommodations saved me further unease, while leaving that familiar sting of rejection: what’s so bad about living outside my window?