BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

American Goshawk In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

American Goshawk in Badlands and Prairies has declined: down 39% on the route-weighted index since 1992.

-39%Since 1992TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
15Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
24YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for American Goshawk in Badlands and Prairies. See the full index history below.

American Goshawk In Badlands and Prairies Population Forecast

If the recent trend holds, American Goshawk in Badlands and Prairies is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±107.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.03Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0795% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±107.7%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, American Goshawk in Badlands and Prairies is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±107.7%, with 100% of held-out values landing inside the 95% band.19772029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.030.000.07
20260.030.000.07
20270.030.000.07
20280.030.000.07
20290.030.000.07

Routes In Badlands and Prairies

Routes recording American Goshawk in Badlands and Prairies.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Gvnt ValleyWYOMING22004
HighwoodMONTANA11996
ShawmutMONTANA11988
St Xavier 2MONTANA12017
Hill CitySOUTH-DAKOTA12001
Black FoxSOUTH-DAKOTA11999
EnglewoodSOUTH-DAKOTA11999
Long DrawSOUTH-DAKOTA11999
Silver CitySOUTH-DAKOTA11992
RochfordSOUTH-DAKOTA12000
HazelrodtSOUTH-DAKOTA11995
Lightning CrSOUTH-DAKOTA12015
SundanceWYOMING12024
MoskeeWYOMING12001
Moskee 2WYOMING12019

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