BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Eastern Wood-Pewee In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieAerial insectivores

Eastern Wood-Pewee in Eastern Tallgrass Prairie has surged: up 150% on the route-weighted index since 1968.

+150%Since 1968TrendPercent 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 →
276Routes 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 →
58YearsYears 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 →

Eastern Wood-Pewee has surged in Eastern Tallgrass Prairie: up 150% on the route-weighted index since 1968.

Eastern Wood-Pewee In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, Eastern Wood-Pewee in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 4.7 (95% range 3.8–5.6). A 5-year backtest shows a typical error of ±20.6%, with 20% of held-out values landing inside the 95% band.

-9%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 →
4.7Projected 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 →
3.8–5.695% 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 →
±20.6%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, Eastern Wood-Pewee in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 4.7 (95% range 3.8–5.6). A 5-year backtest shows a typical error of ±20.6%, with 20% of held-out values landing inside the 95% band.19662029
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 →
20254.53.65.4
20264.63.75.5
20274.63.75.5
20284.73.85.6
20294.73.85.6

Routes In Eastern Tallgrass Prairie

Routes recording Eastern Wood-Pewee in Eastern Tallgrass Prairie.
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 →
BelleviewILLINOIS362024
FrankfordMISSOURI222024
AuburnMISSOURI222024
SticklervillMISSOURI212024
UnionMISSOURI201999
KingsvilleMISSOURI192024
WallaceINDIANA182024
FrazierMISSOURI182024
MillwoodMISSOURI172024
DanvilleMISSOURI162024
EldredILLINOIS152021
MarshallILLINOIS152024
Kahoka2MISSOURI152024
River FallsWISCONSIN152024
GulfportILLINOIS142023
AthensvilleILLINOIS142024
ConcordILLINOIS142024
BradburyILLINOIS142024
BrookvilleINDIANA142024
FilleyMISSOURI142024
Sni MillsMISSOURI141990
KearneyMISSOURI142024
SheffieldILLINOIS132024
St MorganILLINOIS132022
GeraldMISSOURI132024

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