Audubon – “As our climate changes, the bird species we see in our national parks will change, too. On average, one-quarter of bird species found in a given national park could be completely different by 2050 if carbon emissions continue at their current pace. New research, led by the National Audubon Society and National Park Service and published in the peer-reviewed journal PLOS ONE, underscores the need to safeguard and manage protected lands for birds and wildlife in a changing world…”

23% – Projected turnover (change in bird species) a national park could see by 2050, averaged across 274 parks…Some U.S. birds are already altering their behavior and distribution in response to shifts in temperature and rainfall caused by climate change…”