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

Common Nighthawk Population Trend in Nevada

All statesAerial insectivores

Common Nighthawk in Nevada has edged down: down 19% on the route-weighted index since 1970.

-19%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 →
41Routes 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 →
56YearsYears 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 NevadaNotable 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 Nevada. See the full index history below.

Common Nighthawk Population Forecast in Nevada

If the recent trend holds, Common Nighthawk in Nevada is projected to fall about 48% by 2029 — from 2.5 in 2024 to a central estimate of 1.3 (95% range 0.00–15). A 5-year backtest shows a typical error of ±18.4%, with 100% of held-out values landing inside the 95% band.

-48%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 →
1.3Projected 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 →
0.00–1595% 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 →
±18.4%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, Common Nighthawk in Nevada is projected to fall about 48% by 2029 — from 2.5 in 2024 to a central estimate of 1.3 (95% range 0.00–15). A 5-year backtest shows a typical error of ±18.4%, with 100% 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 →
20251.70.0015
20261.60.0015
20271.50.0015
20281.40.0015
20291.30.0015

Common Nighthawk Survey Routes in Nevada

Routes recording Common Nighthawk in Nevada.
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 →
Dinner Sta4219931968
Sand Pass1820241979
Sutcliffe1219721968
Minerva1120241989
Ranchogrande920241988
Eureka820241968
Chimney Res.820242013
Toiyabe Nf620241987
Carson River620012001
Mill City620162016
Virgin Creek520181997
Comins Lake420152006
Bald Mtn.420231993
Fish Creek320211998
Majors Place320191969
Caliente320101999
Nixon320241973
Cortez220241968
Mizpah220161993
Illipah220211968
Gardnerville220021992
Humboldt Nf220191993
Humboldt Nf 2220242022
Piute Mdws120242005
Midas120221974

Common Nighthawk Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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