Species Assessment: |
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The 10-year migration count trends for Black Vultures suggest mostly stable populations across
North America with 77% of 31 total sites showing stable counts (no statistically supported increase
or decrease) during this span. Populations are mostly
stable regionally with both increasing and stable
counts observed in the Gulf Region and mostly stable
counts in the East Region (see pie charts and trend
maps below). Twenty-year count trends (not shown)
also reflect a mostly stable population (East Region:
7 stable, 4 increase, 2 decrease; Gulf Region: 1
increase, 2 stable). Fort Smallwood, Maryland,
counts one of the highest numbers of black vultures
in the spring with an average of 492, and showed stable counts for the recent decade. Increases have been observed in Northeastern states as this
species expands its range northward.
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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.