Species Assessment: |
Download as PDF |
The 10-year migration count trends for the Swainson’s Hawk suggest stable populations across
North America with 93% of 14 total sites showing stable counts during this span. Increasing
observations were seen at one site. Regionally, populations are
mostly stable with one increasing report in the West Region
(see pie charts and trend maps below). 20-year count trends
(not shown) also reflect a stable population with some
increases in the West Region (Gulf Region: 5 stable; West
Region: 3 stable, 1 increase). Average annual numbers are
highest at sites in Veracruz, Mexico, with 387,209 on average
in Chichicaxtle and 244,327 per year at Cardel, Veracruz. In the
United States, Corpus Christi, Texas, recorded the highest
average count of 6,010 per fall. These sites reported stable
counts for the past decade.
×
|
| ||||||
![]() ×
|
-
D. Oleyar, D. Ethier, L. Goodrich, D. Brandes, R. Smith, J. Brown, and J. Sodergren. 2021. The Raptor Population Index: 2019 Analyses and Assessments.