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Le Conte's Sparrow, Christian Artuso
Photo © Christian Artuso

Photo: Christian Artuso
Breeding evidence - Le Conte's Sparrow
Breeding evidence
Probability of observation - Le Conte's Sparrow
Probability of observation
Elevation plot - Le Conte's Sparrow
Elevation plot

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Le Conte's Sparrow
Ammodramus leconteii
Landscape associations:

Click on plot to view table of mean abundance
Elevation range:
340 - 868 m
Conserv. status:
BCRISC: Blue
Global importance
of B.C. population:
7
Number of squares
ConfirmedProbablePossiblePoint counts
4 22 72 38
Long-term BBS trends
RegionYearsTrend (conf. interv.) Reliab.
Canada1970 - 2012 -1.58 (-3.19 - 0.086)Medium

Mean abundance by region

Bird Conservation Regions [plot]
NW Interior ForestBoreal Taiga PlainsGreat BasinNorthern RockiesN. Pacific Rainforest
 0.05     
Ecoprovinces [plot]
N. Boreal Mountains Taiga Plains Boreal Plains Georgia Depression Sub-Boreal Interior
 0.08 0.04   
S. Interior Mountains Central Interior Southern Interior S. Alaska Mountains Coast & Mountains
       

Mean abundance by habitat [plot]

Boreal Altai Fescue AlpineBoreal White and Black SpruceBunchgrassCoastal Douglas-fir
 0.05  
Coastal Mountain-heather AlpineCoastal Western HemlockEngelmann Spruce -- Subalpine FirInterior Cedar -- Hemlock
    
Interior Douglas-firInterior Mountain-heather AlpineMontane SpruceMountain Hemlock
    
Ponderosa PineSpruce -- Willow -- BirchSub-Boreal Pine -- SpruceSub-Boreal Spruce
    

Characteristics and Range Its mouse-like behaviour and thin, insect-like song combine to make the Le Conte's Sparrow an easily overlooked species. When luck and patience combine to allow a detailed view of this elusive sparrow, it's relatively colourful plumage comes as a surprise. The Le Conte's Sparrow breeds mainly in northern prairie and central boreal grasslands, reaching the western limit of its range in northeastern British Columbia. It is also found in small, widely separated pockets farther to the east of this main range, and winters primarily in the United States Southern Coastal Plains, centred on the lower Mississippi Valley and Gulf Coast (Lowther 2005).

Distribution, Abundance, and Habitat Within British Columbia, the Le Conte's Sparrow is found almost exclusively in the northeast, with a few isolated records from the upper Fraser, Thompson and Columbia valleys in the Southern Rocky Mountain Trench. This is consistent with the range described when The Birds of British Columbia was published in 2001, although the Atlas has filled gaps within this range. Due to its secretive habits, the Le Conte's Sparrow may have been overlooked in some squares where it was present. However, the general distribution pattern presented in the Atlas is likely accurate.

The Probability of Observation for Le Conte's Sparrow is highest in the eastern Taiga Plains Ecoprovince. Point count data indicate that local abundance is higher here than in the Boreal Plains Ecoprovince. This area of higher local abundance in far northeastern British Columbia expands on Campbell et al. (2001), who considered it to be most numerous in the Boreal Plains Ecoprovince based on data available at the time. During the Atlas surveys, most Le Conte's Sparrows were found between 350 and 850 m elevation, with highest abundance recorded below 500 m.

The Le Conte's Sparrow is most often found near sedge meadows and similar open, damp habitats. Occasionally it may be found in upland sites such as hayfields, and it is known to respond quite dramatically to local conditions, being much more common in wetter years when it uses sites typically avoided under normal conditions (Phinney 1998, Lowther 2005).

Conservation and Recommendations Atlas work indicates the Le Conte's Sparrow is more widespread and abundant than was previously believed, and in 2015 its conservation status was re-assessed by the British Columbia Conservation Data Centre, and the species was moved from the British Columbia Blue List (Vulnerable) to the Yellow List (not at risk). Long-term Breeding Bird Survey results suggest a slight population decline for Canada and for the Boreal and Taiga Plains Bird Conservation Region. Large wetlands on public land are generally protected from industrial development by regulation, but habitat on private land can be susceptible to wetland draining, mowing, and higher levels of grazing.

Mark Phinney

Recommended citation: Phinney, M. 2015. Le Conte's Sparrow 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=LCSP&lang=en [11 Dec 2018]

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