We warned of it two years ago — Canada geese would eventually be the death of us. OK, so no one actually died in yesterday’s frightening emergency water landing of a U.S. Airways flight in New York City. But still. Those bastard geese once again proved where their allegiances are — and it’s not with us. The District has long had its qualms with Canada geese, a species whose tendency to eat local grasses and poop prolifically has posed a consistent threat to the area’s ecosystem. So annoying have the geese become that the National Park Service has periodically killed large groups of them, if only to save local golf courses, parks and the Anacostia River. Not convinced of their impending danger? Read the City Paper’s 2006 expose of these feathered menaces.