Species Assessment: |
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The 10-year North American migration count trends for the Northern Goshawk suggests some
population declines occurring in part of the range as 46% of 26 total sites recorded a decline in
counts during this span. The other 54% of the count sites recorded stable counts. Stability varies
regionally, with mostly stable counts for sites in the Central and West Regions. The majority of the
declines have been observed in the East, with 69% of
Eastern sites reported declines (see pie charts and trend
maps below). The 20-year count trends (not shown) also
reflect declining trends in the East over this span. The
Central and West Regions have observed both declining
and stable counts during the last 20 years. (Central Region:
1 stable, 1 decrease; East Region: 9 decrease; West Region:
4 stable, 1 decrease). Hawk Ridge, Minnesota, which
counts the highest average count of goshawks at 206,
observed a 7.6% decline in goshawks per year during the past twenty years. The four sites recording
the highest counts of goshawks in the past decade all show stable trends suggesting some declines
may have stabilized, though a rebound or increase was not noted (range 56 to 206 goshawks on
average for highest counts; Hawk Ridge, Minnesota; Tadoussac, Quebec; Goshutes, Nevada;
Whitefish Point, Michigan). Goshawk declines appear most evident in the Eastern Great Lakes and
Appalachians in the recent decade, where sites such as Waggoner’s Gap, Pennsylvania, observe an
average of 36 goshawks per year along with a 15% decline per year.
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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.