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Species · BCR 20 · BBS 2025 Release · 1966–2024

Common Nighthawk In Edwards Plateau

All regionsEdwards PlateauAerial insectivores

Common Nighthawk in Edwards Plateau has declined: down 40% on the route-weighted index since 1969.

-40%Since 1969TrendPercent 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 →
20Routes 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 →
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 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 Common Nighthawk in Edwards Plateau. See the full index history below.

Common Nighthawk In Edwards Plateau Population Forecast

If the recent trend holds, Common Nighthawk in Edwards Plateau is projected to fall about 20% by 2029 — from 2.5 in 2024 to a central estimate of 2.0 (95% range 0.00–5.1). A 5-year backtest shows a typical error of ±101.3%, with 100% of held-out values landing inside the 95% band.

-20%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 →
2.0Projected 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 →
0.00–5.195% 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 →
±101.3%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 Edwards Plateau is projected to fall about 20% by 2029 — from 2.5 in 2024 to a central estimate of 2.0 (95% range 0.00–5.1). A 5-year backtest shows a typical error of ±101.3%, with 100% of held-out values landing inside the 95% band.19672029
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 →
20252.20.005.3
20262.10.005.2
20272.10.005.2
20282.00.005.2
20292.00.005.1

Routes In Edwards Plateau

Routes recording Common Nighthawk in Edwards Plateau.
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 →
ManorTEXAS312024
LeanderTEXAS52006
Pidcoke 2TEXAS42024
KempnerTEXAS22019
AdamsvilleTEXAS22023
Prairie Mtn.TEXAS22003
Allen CreekTEXAS22024
BoerneTEXAS12024
UtopiaTEXAS12018
GeorgetownTEXAS11985
FitzhughTEXAS11983
Valley SpgsTEXAS12008
HarperTEXAS12018
San SabaTEXAS12023
PidcokeTEXAS12016
Indian MtnTEXAS12023
Dripping SpgTEXAS12024
LeakeyTEXAS12023
MontellTEXAS12017
RockspringTEXAS12024

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