Climate change is forcing some bird species farther north

Washington Post : American robins and European wrens are among the many animal species that are shifting habitat because of climate change. Global temperatures have been rising markedly since the Industrial Revolution, and the period from December 2015 to February 2016 saw some of the highest average temperatures since record keeping began in 1880. Many birds have been moving farther north to compensate for the temperature difference. To better understand the effects of climate change on various species, Stephen Willis of Durham University in the UK and colleagues studied climate records from 1980 to 2010 and followed population trends for some 145 common European bird species and 380 American bird species. They found not only that some species handle climate change better than others, but that when a species is forced to move, it leaves a void in the old habitat and creates competition in the new one.