On the first Wednesday of every month, sharp at noon, an air-raid siren wails across Paris, startling pigeons and lending an edge to the midday news.
It also startles chipmunks, squirrels, badgers and eagles. 
mnli hypothesis: It also startles chipmunks, squirrels, badgers and eagles.  premise: On the first Wednesday of every month, sharp at noon, an air-raid siren wails across Paris, startling pigeons and lending an edge to the midday news.