Northern spotted owl decline linked to invasive owl, habitat loss, and climate
Friday, December 11, 2015 - 13:53
in Biology & Nature
Northern spotted owl populations are declining in all parts of their range in the Pacific Northwest, according to research based on data from 11 study areas across Washington, Oregon and northern California. A rangewide decline of nearly 4 percent per year was estimated from 1985 to 2013.