BirdAnalyst
Species · Wyoming · BBS 2025 Release · 1966–2024

Ferruginous Hawk Population Trend in Wyoming

All statesGeneralists

Ferruginous Hawk in Wyoming has declined: down 41% on the route-weighted index since 1970.

-41%Since 1970
94Routes In State
56Years

Notable Ferruginous Hawk Trends in Wyoming

No notable trend signals for Ferruginous Hawk in Wyoming. See the full index history below.

Ferruginous Hawk Population Forecast in Wyoming

If the recent trend holds, Ferruginous Hawk in Wyoming is projected to stay roughly flat through 2029, near 0.29 (95% range 0.00–0.60). A 5-year backtest shows a typical error of ±12.3%, with 100% of held-out values landing inside the 95% band.

-3%Change by 2029
0.29Projected 2029 index
0.00–0.6095% range
±12.3%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.300.000.61
20260.300.000.61
20270.300.000.61
20280.300.000.61
20290.290.000.60

Ferruginous Hawk Survey Routes in Wyoming

Routes recording Ferruginous Hawk in Wyoming.
Shirley520241980
Harland Flat420171992
Highlight420071980
Newcastle420131988
Farson420052005
Glenrock319731970
Piney319891980
Pine Tree319951980
Boulder320241995
Gas Hills319931991
Pathfinder320221988
Kaycee320222022
Welch320181978
Gvnt Valley320161996
Carter320162006
Hampshire320222000
Carter 2320232017
Clarkelen219761971
Bill219991974
Ervay220241981
Mckinnon219701970
Soda Well220241980
Crowheart220082008
Arminto220191983
Teapot Dome219831983

Ferruginous Hawk Population Trend in Other States

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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.