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

Osprey In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

Osprey in Badlands and Prairies has held roughly steady: down 3% on the route-weighted index since 1986.

-3%Since 1986TrendPercent 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 →
13Routes 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 →
26YearsYears 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 Osprey in Badlands and Prairies. See the full index history below.

Osprey In Badlands and Prairies Population Forecast

If the recent trend holds, Osprey in Badlands and Prairies is projected to fall about 31% by 2029 — from 0.07 in 2024 to a central estimate of 0.05 (95% range 0.01–0.09). A 5-year backtest shows a typical error of ±95.3%, with 60% of held-out values landing inside the 95% band.

-31%Change 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 →
0.05Projected 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 →
0.01–0.0995% 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 →
±95.3%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, Osprey in Badlands and Prairies is projected to fall about 31% by 2029 — from 0.07 in 2024 to a central estimate of 0.05 (95% range 0.01–0.09). A 5-year backtest shows a typical error of ±95.3%, with 60% of held-out values landing inside the 95% band.19832029
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 →
20250.050.010.09
20260.050.010.09
20270.050.010.09
20280.050.010.09
20290.050.010.09

Routes In Badlands and Prairies

Routes recording Osprey 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 →
JordanMONTANA42024
Reed PointMONTANA32017
CusterSOUTH-DAKOTA22017
Hill CitySOUTH-DAKOTA22013
Silver CitySOUTH-DAKOTA22012
ForsythMONTANA12015
St XavierMONTANA12010
Long DrawSOUTH-DAKOTA12021
RochfordSOUTH-DAKOTA12018
DaytonWYOMING12009
SussexWYOMING12024
WelchWYOMING12010
Seely 2WYOMING12022

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