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

Great Crested Flycatcher In Badlands and Prairies

All regionsBadlands and PrairiesAerial insectivores

Great Crested Flycatcher in Badlands and Prairies has increased: up 31% on the route-weighted index since 1973.

+31%Since 1973TrendPercent 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 →
12Routes 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 →
21YearsYears 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 Great Crested Flycatcher in Badlands and Prairies. See the full index history below.

Great Crested Flycatcher In Badlands and Prairies Population Forecast

If the recent trend holds, Great Crested Flycatcher in Badlands and Prairies is projected to fall about 28% by 2029 — from 0.07 in 2024 to a central estimate of 0.05 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±94.1%, with 20% of held-out values landing inside the 95% band.

-28%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 →
0.00–0.1395% 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 →
±94.1%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, Great Crested Flycatcher in Badlands and Prairies is projected to fall about 28% by 2029 — from 0.07 in 2024 to a central estimate of 0.05 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±94.1%, with 20% of held-out values landing inside the 95% band.19682029
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 →
20250.050.000.13
20260.050.000.13
20270.050.000.13
20280.050.000.13
20290.050.000.13

Routes In Badlands and Prairies

Routes recording Great Crested Flycatcher 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 →
CrookstonNEBRASKA52024
WinnerSOUTH-DAKOTA22021
Oglala Nat. Grass.NEBRASKA12009
DickinsonNORTH-DAKOTA11975
Dunn CenterNORTH-DAKOTA12010
CarsonNORTH-DAKOTA11991
RosebudSOUTH-DAKOTA12010
PromiseSOUTH-DAKOTA11996
Cedar PassSOUTH-DAKOTA11987
ArdmoreSOUTH-DAKOTA11989
BadlandsSOUTH-DAKOTA12023
LacreekSOUTH-DAKOTA11991

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