There are few data on the White-throated Swift in Canada. However, the species has apparently expanded its range in British Columbia since it was first recorded in the early 1900s (Campbell et al. 1990), and data from the Atlas of the Breeding Birds of British Columbia show that the expansion has continued in some areas (Cannings 2015). There are insufficient data from the Breeding Bird Survey to calculate a trend estimate for Canada, but results for the continental population suggest little overall change. As a peripheral species that was never common in Canada, the White-throated Swift's national population goal is set at maintaining the population at recent levels (i.e. the level between 2008-2012). With a possibly expanding distribution and increasing population in British Columbia, the White-throated Swift is at an acceptable level relative to that goal.
Additional information on: Breeding Bird Survey (BBS) - Canadian analysis
