The 10-year migration count trends for Ferruginous Hawks suggest some populations may be declining, as two of four sites reported declining counts. Two of three sites with 20-years of data showed stable counts.

Winter survey data from the Christmas Bird Count (CBC) show stable 10-year trends range-wide with the annual percent change in population reported to be an increase of 1.18%. The Ferruginous Hawk is a Species of Least Concern, designated by IUCN Red List. It has been locally designated with varying sensitivity throughout its range, which is concentrated in the Western United States, Northern Mexico, and Southwestern Canada. Ferruginous Hawks were designated as a Species of Special Concern in Canada in 2021, having improved since their previous listing as a Threatened species in 2010. In the United States, the species is listed as vulnerable or imperiled in 16 states. It is ranked by NatureServe as uncommon. Ferruginous Hawks are at high risk of population declines due to wind energy. The species has also been shown to be sensitive to urbanization, collisions with vehicles, rodenticides, and lead poisoning.

Please cite this page as:
M. Carson, D. Oleyar, D. Ethier, L. Goodrich, D. Brandes, J. Brown, and J. Sodergren. 2025. The Raptor Population Index: 2023 Species Assessments. Available at http://rpi-project.org/2023/assessments2023.php