September 19, 2019 – Data show that since 1970, the U.S. and Canada have lost nearly 3 billion birds, a massive reduction in abundance involving hundreds of species, from beloved backyard songbirds to long-distance migrants. “Multiple, independent lines of evidence show a massive reduction in the abundance of birds,” said Ken Rosenberg, the study’s lead author and … Continue reading New Study Finds U.S. And Canada Have Lost More Than One In Four Birds In The Past 50 Years