Species Assessment: |
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The 10-year migration count trends for Prairie Falcon suggest stable and increasing populations
across its range as three of the four count sites in the West reported stable counts and one reported
increased counts (see pie charts and trend maps below). Manzanos, New Mexico, reported the
highest average yearly count at 2,867 individuals, which was
stable. Twenty-year count trends (not shown) also reflect a
stable population (West Region: 3 stable, 1 decrease). Winter
survey data from the Christmas Bird Count (CBC) show mostly
stable 10-year trends range-wide with the annual percent
change in population reported to be 0.67%. However, British
Columbia reported an almost 3% decrease in CBC observations
during the same span. The Prairie Falcon is a species of Least
Concern, designated by IUCN red list. The species is
vulnerable to habitat loss in nesting areas because the
number of cliff nesting sites is finite and nonrenewable. It is also vulnerable to human disturbances at
nesting sites and loss of prey availability due to agricultural practices. Efforts to reintroduce this species to
areas of Alberta and California where it had been extirpated were made in the last 20 th century.
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D. Oleyar, D. Ethier, L. Goodrich, D. Brandes, R. Smith, J. Brown, and J. Sodergren. 2021. The Raptor Population Index: 2019 Analyses and Assessments.