Securing the title of the world’s largest owl requires a 6-foot, 3-inch wingspan. Having only 1,700 mature individuals remaining leaves Blakiston’s fish owl in a highly vulnerable state.

The story of one biologist’s obsessive four-year search through the most unforgiving of habitats in Russia’s far eastern reaches to find and study the world’s largest owl Blakiston’s fish owl, or more ...

Add Yahoo as a preferred source to see more of our stories on Google. Action scene from the forest with owl. Flying Great Grey Owl, Strix nebulosa, above green spruce tree with dark forest in ...