Species Assessment: |
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One of the most frequently recorded species at the
majority of watch sites, the Sharp-shinned Hawk, is also
the species with the highest number of declining counts
across North America between 2009 and 2019,
accounting for 17% of the 219 total declining trends
identified during this time span. Our results show
declines in migrating Sharp-shinned Hawks at 48% of
count sites, while 51% of sites show stable counts and
one site displayed increased counts. Eighty-seven
percent of these declines are at watch sites in the East,
8% in the West, and 5% in the Central region. The sites
with the highest average counts of Sharp-shinned Hawks
across the continent include Hawk Ridge, Minnesota, Cape May, New Jersey, Whitefish Point,
Michigan, and Hawk Cliff, Ontario. These sites split their trends with Eastern sites recording
declines. Cape May averaged 14,814 Sharp-shinned Hawks annually, with a decline of 5.45% per
year in the last decade. Hawk Cliff averaged 7,750 migrants with a decline of 7.13% annually
from 2009 to 2019. In the Western Great Lakes, Hawk Ridge averaged 16,287 migrants
annually. with stable counts. Whitefish Point tallied an average of 9,419 migrants annually with
stable numbers.
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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.