The Spotted Owl (Strix occidentalis) lives in old growth forests in the Pacific Northwest. Long cited in the debate over cutting old growth forests, the Spotted Owl is now at risk due to Barred Owls that have migrated west into their habitat.
For more on the Spotted Owl go to:
http://www.defenders.org/northern-spotted-owl/basic-facts
http://www.smithsonianmag.com/science-nature/The-Spotted-Owls-New-Nemesis.html
For recent developments on Barred and Spotted Owls go to:
http://usnews.nbcnews.com/_news/2013/07/23/19645594-feds-move-ahead-with-plans-to-kill-barred-owls-to-save-spotted-owls?lite