For migrant birds in North America, 2011 emerged with a startling truth?things that go "boom" in the night can kill you. On New Year's Eve in Beebe, Arkansas, more than 3,000 red-winged blackbirds and migrating birds of several other species tumbled from a night sky lit with fireworks. Preliminary necropsy reports from the U.S. Geological Survey's National Wildlife Health Center (NWHC) in Madison, Wisconsin, have confirmed "impact trauma" as the culprit in the bizarre event, reports the Wildlife Management Institute.