BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

Common Nighthawk Population Trend in Wyoming

All statesAerial insectivores

Common Nighthawk in Wyoming has increased: up 39% on the route-weighted index since 1970.

+39%Since 1970TrendPercent 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 →
131Routes 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 →
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 Common Nighthawk Trends in WyomingNotable 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 Common Nighthawk in Wyoming. See the full index history below.

Common Nighthawk Population Forecast in Wyoming

If the recent trend holds, Common Nighthawk in Wyoming is projected to stay roughly flat through 2030, near 2.4 (95% range 0.54–4.3). A 5-year backtest shows a typical error of ±22.1%, with 100% of held-out values landing inside the 95% band.

+5%Change by 2030TrendPercent 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 →
2.4Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.54–4.395% 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 →
±22.1%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, Common Nighthawk in Wyoming is projected to stay roughly flat through 2030, near 2.4 (95% range 0.54–4.3). A 5-year backtest shows a typical error of ±22.1%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20262.40.564.3
20272.40.564.3
20282.40.554.3
20292.40.544.3
20302.40.544.3

Common Nighthawk Survey Routes in Wyoming

Routes recording Common Nighthawk in Wyoming.
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 →
Seedskadee 25020242024
Green River3119841977
Thunder Basin1820252011
Dwyer1720251992
Meadowdale1720251983
Seedskadee1720231986
Baggs1520251995
Glenrock1419771970
Caballa Crk1220211992
Newcastle1020241988
Bill920181974
Seely920001990
Lysite920241989
Seely 2920252004
Carter 2820252018
Cody720251983
Wyarno720251974
Lingle720211983
Sybille Cyn720251980
Otto620251970
Elk Horn620181990
Ervay620251973
Moskee619971987
Mayoworth620241982
Riverview620251982

Common Nighthawk Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.