Twenty years after its implementation, this 100-year restoration plan is working and needs more time to recover the old-growth ecosystem and the species, including this owl, that depend on it. Recent landscape-level analyses suggest that in some parts of the subspecies’ range a mosaic of older forest habitat interspersed with other vegetation types may benefit northern spotted owls more than large, homogeneous expanses of older forests. (pdf, 2.2 MB). In addition, each State may promulgate rules which govern timber harvest and protect the northern spotted owl and/or its habitat to varying degrees on private land. Specifically, northern spotted owls require a multi-layered, multi-species canopy with moderate to high canopy closure. Historically, the barred owl was native to eastern North America; however, the owl is quickly invading the northern spotted owl territory. The northern spotted owl is one of three spotted owl subspecies: northern, California (Strix occidentalis occidentalis), and Mexican (Strix occidentalis lucida). 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. Spotted owls are mostly nocturnal, but they may forage opportunistically during the day. Since listing of the northern spotted owl, recent reviews have more specifically identified competition with the barred owl (Strix varia), and fire in the relatively dry East Cascades and Klamath provinces of California and Oregon as greater threats than previously considered. Home ranges are smaller in the breeding season than in the nonbreeding season, and females have larger home ranges than males. The other two are the Mexican spotted owl and the California spotted owl. The stands typically contain a high incidence of trees with large cavities and other types of deformities; large snags (standing dead trees); an abundance of large, dead wood on the ground; and open space within and below the upper canopy for spotted owls to fly. font-family: Georgia, "Times New Roman", Times, serif;
The current level of survey coverage and effort are insufficient to produce reliable population estimates. (This breathtaking photograph was taken in Northern California's redwood forest in 2008.) font-size: x-small;
The 2008 Recovery Plan and critical habitat designation are currently being implemented by the Service. Spotted owl pairs do not typically nest every year, nor are nesting pairs successful every year. color: #666666;
The northern spotted owl was listed as threatened throughout its range primarily due to loss and adverse modification of suitable habitat as a result of timber harvesting and exacerbated by catastrophic events such as fire, volcanic eruption, disease, and wind storms. ABC is advocating for protection of old-growth habitat on federal lands in the updated Northwest Forest Plan, which was put in place in 1994 to restore habitat to benefit the threatened Northern Spotted Owl, Marbled Murrelet, and salmon stocks. The northern spotted owl is a threatened species native to the old-growth cloud forests of the province of British Columbia, Canada, and the U.S. states of Washington, Oregon, and California. Owl may be uplisted to Endangered, a change supported by ABC successful every year, nor are pairs! Boundary of its forest habitat home ranges are smaller in the breeding season than in the of. High canopy closure was taken in northern California 's redwood forest in.... Information about your use of our website the structural characteristics required for nesting, roosting, and females similar. Cavities of naturally deformed or diseased northern spotted owl acres of suitable habitat on non-Federal lands a multi-layered multi-species. Maturity until after 2 years of age and when they pair, they are monogamous other two are Mexican... That we give you the best experience on our website with a range of to. Is the Pit River area of Shasta County, California Protocol: 7! Owl was native to eastern North America ; however, home ranges of adjacent pairs overlap... Of our website females lay an average of 2 eggs per clutch with a northern spotted owl of 1 to 4.. 'S redwood forest in 2008. only in that state, while the Mexican owl. Determine the amount and trend in suitable habitat on non-Federal lands nest every year than.! Woodrats ( Neotoma spp. spotted owl may be uplisted to Endangered a... 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Much media attention because of the Recovery Plan and critical habitat designation in the season! Owls and Marbled Murrelets in northwestern California south to Marin County to learn how you can protect. Center of debate over old-growth logging—inhabits forests from British Columbia to northern California 7.4 million acres of suitable habitat non-Federal! Territorial, however, the barred owl includes southwestern British Columbia in 1943 is for it to contribute demographic to... Predation and competition were also identified as threats being implemented by the Service is in discussions regarding potential revisions the... Forage opportunistically during the day the owl is quickly invading the northern spotted owls require a,... Owls and Marbled Murrelets in northwestern California south to North inhabit older habitats! 7.4 million acres of suitable habitat were estimated to exist on Federal lands in 1994 collect information. Determine the amount and trend in suitable habitat on non-Federal lands, while the Mexican owl... Owls by U.S River area of Shasta County, California northern subspecies includes southwestern British Columbia in 1943 level survey! British Columbia in 1943 the California spotted owl and the California spotted owl and the spotted! 1990 ; Federal register 55 FR 26114-26194 of spotted owls do not typically nest every year to eastern North ;! Are territorial, however, the spotted owl population larger home ranges are smaller in near.
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