At least 112 North American bird species have lost more than half their populations in the past 50 years, according to a new report published late last week.
Among the birds showing the steepest declines are Allen’s hummingbirds, Florida scrub jays, golden-cheeked warblers, tricolored blackbirds and yellow-billed magpies. For several decades, waterfowl stood out as a conservation bright spot with duck populations growing nationwide even as many other groups of birds declined in the U.S. But that trend has reversed, the new data shows.
