Flocks of birds have been dropping dead without explanation all around the country recently actually, not just recently, always, but we’re only recently paying attention but one incident in Yankton, South Dakota, earlier this week has been definitively solved. The USDA admitted it had poisoned about 2,000 starlings because they were “causing problems in a north Nebraska cattle feedlot, eating the feed and leaving waste on both the feed and equipment.” [MSNBC]