Active forest restoration plans forbid any type of logging and try to accelerate dispersal, forage, and nesting habitat for the spotted owls. Now in a further attempt to try to protect spotted owls, another owl, the … Northern Spotted Owls have large home range requirements. The Northern Spotted Owl was listed as “threatened” under the Endangered Species Act in 1990 due to over-harvesting of old growth habitat, and lack of regulations to stop the decline. They are adversely affected by reductions in late-successional forest. The Northern Spotted Owl is listed as a threatened species. The Spotted Owl (Strix occidentalis) is 43 cm (17 inches), a wingspan of 114 cm (45 in), and a weight of around 600 g (21 oz).Its eggs are a little over 50 mm (2.0 in) long, and are white and smooth with a slightly grainy texture. Northern spotted owls are endangered and efforts to save them and their habitat is ongoing. Spotted owls have been known to eat bats and other owls.bats and other owls.The spotted owl eats small and medium-sized mammals, especially rodents. Due to ongoing logging of the old-growth forests of southwestern British Columbia scientists estimate that less than a half dozen owls now remain in the wild in Canada. Density of spotted owl pairs within suitable habitat also depends on specific habitat quality and location, varying between 0.022 owls/km 2 in pinyon-juniper woodlands … Due to ongoing logging of the old-growth forests of southwestern British Columbia scientists estimate that less than a half dozen owls now remain in the wild in Canada. The only way to do this is to promote second growth forests. What you can do to help snowy owls. The primary threats to the northern spotted owl are loss of habitat and habitat fragmentation due to clear-cuts or regeneration harvests and even-age forest management. This handsome medium-sized owl, with its unusual dark-brown eyes, relies on old-growth forests to roost, nest and forage. In conclusion, the main reason why the Northern Spotted Owl is endangered is human ignorance. The Spotted Owl: The scientific name for the spotted owl is Strix occidentalis. The Spotted Owl (Strix occidentalis) is 43 cm (17 inches), a wingspan of 114 cm (45 in), and a weight of around 600 g (21 oz). Development, pollution, and logging leave these owls nowhere to live, breed, and eat. Official Status: Threatened, the northern spotted owl is Federally listed under the Endangered Species Act as a threatened species in Washington, Oregon and California, and State-listed as threatened in California and Oregon, and endangered in Washington.Critical habitat is designated for the species.A final recovery plan has been released. The Northern Spotted Owl is also on the endangered species list. In Canada, the endangered northern spotted owl is found only in the southwestern corner of British Columbia. This article describes ruddy ducks, their habitats and what is being done to save them. Hybridization and competition with Barred Owls (Strix varia) represent emerging threats. Northern spotted owls are listed as “Threatened” under the Endangered Species Act.