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

Western Wood-Pewee In Badlands and Prairies

All regionsBadlands and PrairiesAerial insectivores

Western Wood-Pewee in Badlands and Prairies has surged: up 168% on the route-weighted index since 1969.

+168%Since 1969TrendPercent 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 →
100Routes 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 →
57YearsYears 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Western Wood-Pewee has surged in Badlands and Prairies: up 168% on the route-weighted index since 1969.

Western Wood-Pewee In Badlands and Prairies Population Forecast

If the recent trend holds, Western Wood-Pewee in Badlands and Prairies is projected to stay roughly flat through 2029, near 3.9 (95% range 2.8–4.9). A 5-year backtest shows a typical error of ±19.3%, with 60% of held-out values landing inside the 95% band.

-5%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 →
3.9Projected 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 →
2.8–4.995% 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 →
±19.3%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, Western Wood-Pewee in Badlands and Prairies is projected to stay roughly flat through 2029, near 3.9 (95% range 2.8–4.9). A 5-year backtest shows a typical error of ±19.3%, with 60% of held-out values landing inside the 95% band.19672029
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 →
20253.72.74.7
20263.72.74.8
20273.82.74.8
20283.82.84.9
20293.92.84.9

Routes In Badlands and Prairies

Routes recording Western Wood-Pewee 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 →
Reed PointMONTANA322024
RochfordSOUTH-DAKOTA282018
Elk MountainSOUTH-DAKOTA252004
CusterMONTANA232022
Black FoxSOUTH-DAKOTA222017
DaytonWYOMING202024
Moskee 3WYOMING202024
SundanceWYOMING172024
Chuffey SpringMONTANA162024
Custer 2MONTANA162024
Silver CitySOUTH-DAKOTA162012
HighwoodMONTANA152024
Hill CitySOUTH-DAKOTA152013
Roubaix LkSOUTH-DAKOTA141991
Pleasant ValSOUTH-DAKOTA122024
BrusettMONTANA112024
HazelrodtSOUTH-DAKOTA112024
BrandenbergMONTANA102019
Maynard CouleeMONTANA102024
Long DrawSOUTH-DAKOTA102024
Wind Cave NpSOUTH-DAKOTA102024
MayoworthWYOMING102024
ForsythMONTANA92023
CusterSOUTH-DAKOTA72024
Lightning CrSOUTH-DAKOTA72022

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