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

Eastern Phoebe In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieAerial insectivores

Eastern Phoebe in Eastern Tallgrass Prairie has surged: up 163% on the route-weighted index since 1968.

+163%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 →
272Routes 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 Phoebe has surged in Eastern Tallgrass Prairie: up 163% on the route-weighted index since 1968.

Eastern Phoebe In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, Eastern Phoebe in Eastern Tallgrass Prairie is projected to rise about 11% by 2029 — from 2.7 in 2024 to a central estimate of 3.0 (95% range 2.1–3.9). A 5-year backtest shows a typical error of ±38.4%, with 60% of held-out values landing inside the 95% band.

+11%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 →
3.0Projected 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 →
2.1–3.995% 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 →
±38.4%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 Phoebe in Eastern Tallgrass Prairie is projected to rise about 11% by 2029 — from 2.7 in 2024 to a central estimate of 3.0 (95% range 2.1–3.9). A 5-year backtest shows a typical error of ±38.4%, with 60% 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 →
20252.82.03.7
20262.92.03.8
20272.92.03.8
20283.02.13.9
20293.02.13.9

Routes In Eastern Tallgrass Prairie

Routes recording Eastern Phoebe 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 →
GeraldMISSOURI202024
MoselleMISSOURI132024
FilleyMISSOURI122024
Ash RidgeOHIO122021
RobinsonILLINOIS102023
WrefordKANSAS102024
EmdenMISSOURI102024
House SpringsMISSOURI102024
UnionMISSOURI101999
SextonINDIANA92023
ReeceKANSAS92024
Sni MillsMISSOURI91990
BelleviewILLINOIS82024
Mt VernonILLINOIS82024
BedfordIOWA82018
EllinorKANSAS82024
LincolnvilleKANSAS82024
MillwoodMISSOURI82024
Terre HauteILLINOIS72024
MoreheadKANSAS72024
Trading PostKANSAS72024
Le LoupKANSAS72021
DanvilleMISSOURI72024
OhioMISSOURI72024
FrazierMISSOURI72024

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