Canyon Wren
(Catherpes mexicanus)

Summary

Picture of bird
© Andrew A Reding - License
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The Canyon Wren is resident in the Okanagan and adjacent valleys in south central British Columbia at elevations below 600 m (Siddle 2015). Christmas Bird Count data suggest that numbers have increased since 1970. Severe winter weather can cause catastrophic declines in the small Canadian population, to the extent that the Canyon Wren has occasionally been temporarily extirpated (Cannings 1995a). This species has been identified as a priority for conservation and/or stewardship in one or more Bird Conservation Region Strategies in Canada.

Designations

Main designations for the species
DesignationStatusDateSubspecies, population
COSEWIC (Canada)Not at Risk1992 
IUCN (Global)Least concern2018 
Wild Species (Canada)Vulnerable2015 
Bird Conservation Region StrategyPriority Species2013 

Population status

Geographic area or populationPopulation change relative to ~1970ReliabilityStatus in relation to goal
CanadaModerate IncreaseHighAt an Acceptable Level
 

Population estimate

Geographic area or populationPopulation estimate
Canada< 1,000 adults
 

Distribution maps

 

Migration strategy, occurrence

Resident

Responsibility for conservation

Geographic areaResponsibility based on % of global population
CanadaVery Low

General nesting period in Canada

Nesting period starts between mid-April and late April and ends between late July and early August, depending on the region. Before or after this period, the probability of an active nest is lower.
 

Conservation and management

Populations at the northern edge of this non-migratory species' range are vulnerable to the effects of harsh winters, although populations have recovered in the past (Siddle 2015, Elliott 2006). The species is found in areas of high rock cliffs and massive talus debris, and is not subject to the same pressures from urban and agricultural development that affect other species in the Okanagan Valley (Cannings 1995a). The Canyon Wren is blue-listed in British Columbia (B.C. Conservation Data Centre 2018).

 

Bird conservation region strategies

Environment and Climate Change Canada and partners have developed Bird Conservation Region Strategies in each of Canada’s Bird Conservation Regions (BCRs). In these strategies, selected species are identified as priorities for one or more of the following reasons:

  • conservation concerns (i.e., species vulnerable due to population size, distribution, population trend, abundance, or threats)
  • stewardship responsibilities (i.e., species that typify the regional avifauna or have a large proportion of their range or population in the sub-region)
  • management concerns (i.e., species that require ongoing management because of their socio-economic importance as game species, or because of their impacts on other species or habitats)
  • other concerns (i.e., species deemed a priority by regional experts for other reasons than those listed above or because they are listed as species at risk or concern at the provincial level)

Select any of the sub-regions below to view the BCR strategy for additional details.

BCRs, marine biogeographic units, and sub-regions in which the species is listed as a priority
RegionSub-region and priority type
Great BasinGreat Basin, sub-region and priority type: Pacific and Yukon -- Other
Northern RockiesNorthern Rockies, sub-region and priority type: Pacific and Yukon -- Other
 

References