The Spotted Owl is a charismatic denizen of old-growth forests of the Pacific Northwest. Often at odds with logging and development interests, it's now further challenged by competition with the closely-related Barred Owl, as that species moves westward into new habitats.
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The Spotted Owl is at the northern limits of its range in old growth coniferous forests of southwestern mainland British Columbia, where its numbers dwindled from about 200 individuals in 1992 to fewer than 20 individuals in 2007 (COSEWIC, 2008), and have continued to decline since, with likely fewer than five individuals remaining. The species was recorded in just one square of the British Columbia Breeding Bird Atlas between 2008 and 2012 (Chutter, 2015). The Canadian population accounts for less than 1% of the global total, and Canada therefore has very low responsibility for the species. The caurina subspecies of Spotted Owl was first assessed as Endangered by the Committee on the Status of Endangered Wildlife in Canada in 1986 (COSEWIC, 2008), and has been listed at that level under the Species at Risk Act since 2003. The national population of Spotted Owl is below its goal range.
The Canadian population of Spotted Owl is not effectively monitored by any standard surveys. Rather, its status has been tracked by targeted surveys, which indicate that the population decreased from roughly 200 birds in 1992 to fewer than 60 in 2002, and only 19 in 2007, compared to an estimate of 1000 individuals prior to European settlement (COSEWIC, 2008). Despite limited data, there is high confidence that a large decline has occurred since 1970.
The Species at Risk Act Recovery Plan for Spotted Owl has established a long-term goal of a stable population of at least 250 mature individuals distributed within a connected network of habitat representative of all three sub-regions within the species' historical Canadian range and linked to the larger population in the US (ECCC, 2024). The population is currently far below this goal.
Designation | Geographic Area | Status | CITATION | Subpopulation |
---|---|---|---|---|
COSEWIC | Canada | Endangered | Spotted Owl caurina subspecies | |
Wild Species | Canada | Critically imperiled | ||
IUCN | Global | Near Threatened | ||
Species At Risk Act | Canada | Endangered | Spotted Owl caurina subspecies | |
Partners in Flight | Western Hemisphere | Yellow Watch List |
- COSEWIC. 2008e. COSEWIC Assessment and Update Status Report on the Spotted Owl, Strix occidentalis caurina, Caurina subspecies, in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 48 pp. https://wildlife-species.canada.ca/species-risk-registry/document/default_e.cfm?documentID=1648.
- Chutter, M. 2015a. Spotted Owl in: Davidson, P.J.A., R.J. Cannings, A.R. Couturier, D. Lepage, and C.M. Di Corrado (eds.). The Atlas of the Breeding Birds of British Columbia, 2008-2012. Bird Studies Canada. Delta, B.C. http://www.birdatlas.bc.ca/accounts/speciesaccount.jsp?sp=SPOW&lang=en.
- Environment and Climate Change Canada (ECCC). 2024b. Amended Recovery Strategy for the Spotted Owl caurina subspecies (Strix occidentalis caurina) in Canada [Revised Proposed version]. Species at Risk Act Recovery Strategy Series. Environment and Climate Change Canada, Ottawa. x + 50 pp. https://wildlife-species.az.ec.gc.ca/species-risk-registry/virtual_sara/files//plans/amended_rs_spotted_owl_caurina_revised_proposed_e.pdf.
The Spotted Owl is a charismatic denizen of old-growth forests of the Pacific Northwest. Often at odds with logging and development interests, it's now further challenged by competition with the closely-related Barred Owl, as that species moves westward into new habitats.
Spotted Owl is reported in Canada only in very small numbers, with most records occurring between March and October.