Field Sparrow
(Spizella pusilla)

Summary

Picture of bird
© Dan Busby
For additional photos and vocalizations, visit Dendroica. (Link opens in a new window.)

An uncommon breeder in Canada, the Field Sparrow is confined primarily to southern Ontario and southern Quebec. Results from the Breeding Bird Survey indicate a large decrease since about 1970, likely due to changing farmland habitats and urban expansion (Carey et al. 2008), both within Canada and throughout the species' North American range. 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
IUCN (Global)Least concern2018 
Partners in Flight (North America)Common birds in steep decline2017 
Wild Species (Canada)Apparently secure2015 
Bird Conservation Region StrategyPriority Species2013 

Population status

Geographic area or populationPopulation change relative to ~1970ReliabilityStatus in relation to goal
CanadaLarge DecreaseHighBelow Acceptable Level
 

Population estimate

Geographic area or populationPopulation estimate
Canada5,000 - 50,000 adults
 

Distribution maps

 

Migration strategy, occurrence

Short-distance migrant

Responsibility for conservation

Geographic areaResponsibility based on % of global population
CanadaLow

General nesting period in Canada

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

Conservation and management

Field Sparrow populations expanded in response to conversion of forest to farm land during the period of European settlement and are likely higher today than during pre-settlement times (Carey et al. 2008). Recent decreases in populations are likely due to natural succession of old fields and other scrublands to forest, which is unsuitable habitat for the Field Sparrow (Carey et al. 2008).

 

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
Atlantic Northern ForestsAtlantic Northern Forests, sub-region and priority type: Quebec -- Other
Boreal Hardwood TransitionBoreal Hardwood Transition, sub-region and priority type: Ontario and Manitoba -- Conservation
Boreal Hardwood TransitionBoreal Hardwood Transition, sub-region and priority type: Quebec -- Conservation
Lower Great Lakes/St. Lawrence PlainLower Great Lakes/St. Lawrence Plain, sub-region and priority type: Ontario -- Conservation
Lower Great Lakes/St. Lawrence PlainLower Great Lakes/St. Lawrence Plain, sub-region and priority type: Quebec -- Conservation
 

References