BirdAnalyst
Species · Oklahoma · BBS 2025 Release · 1966–2024

Eastern Whip-poor-will Population Trend in Oklahoma

All statesAerial insectivores

Eastern Whip-poor-will in Oklahoma has increased: up 50% on the route-weighted index since 1971.

+50%Since 1971TrendPercent 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 →
16Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
45YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eastern Whip-poor-will Trends in OklahomaNotable 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 Eastern Whip-poor-will in Oklahoma. See the full index history below.

Eastern Whip-poor-will Population Forecast in Oklahoma

If the recent trend holds, Eastern Whip-poor-will in Oklahoma is projected to stay roughly flat through 2024, near 0.10 (95% range 0.00–0.24). A 5-year backtest shows a typical error of ±175.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2024TrendPercent 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 →
0.10Projected 2024 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.2495% 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 →
±175.7%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 Whip-poor-will in Oklahoma is projected to stay roughly flat through 2024, near 0.10 (95% range 0.00–0.24). A 5-year backtest shows a typical error of ±175.7%, with 100% of held-out values landing inside the 95% band.19682024
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 →
20200.100.000.24
20210.100.000.24
20220.100.000.24
20230.100.000.24
20240.100.000.24

Eastern Whip-poor-will Survey Routes in Oklahoma

Routes recording Eastern Whip-poor-will in Oklahoma.
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 →
Duncan219911991
Colcord220051992
Big Cedar120191975
Foraker119921992
Ouachita Nf120121992
Mill Creek120032003
Baron120041970
Canadian120032003
Hee Mountain120122012
Beggs120021984
Bethel120101996
Matoy119941994
Peoria119781968
Welch120092009
Bartlesville120081993
Skiatook120031996

Eastern Whip-poor-will Population Trend in Other States

alabamaarkansasconnecticutdelawaregeorgiaillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiopennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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