Species Assessment: |
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The 10-year migration count trends for Peregrine Falcon suggest mostly stable populations across
North America with 80% of 60 total sites showing stable counts during this span. However,
decreasing counts have been observed at 12% of the sites with only 8% of sites reporting an
increase. For the East Region, 17% of 41 count sites show declines, with declining sites clustered in
the Mid-Atlantic Coastal Region. The Central and Gulf Regions show 17% and 20% of count sites
have observed increasing trends and no declines. The West Region has reported both declines and
increases (see pie charts and trend maps below). The highest count of Peregrine Falcon is observed
at the Florida Keys site, Florida, with 2,771 birds per year on average, where numbers appear stable.
Cape May, New Jersey, records the second highest count on average, with 1,050 per year and a
3.15% decline per year in the past decade.
The 20-year count trends (not shown) imply a stable and increasing trends among the sites (Central
Region: 1 stable, 1 increase; East Region: 11 stable, 8 increase; Gulf Region: 2 stable, 2 increase;
West Region: 5 increase, 1 stable).
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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.