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

Common Nighthawk Population Trend in Pennsylvania

All statesAerial insectivores

Common Nighthawk in Pennsylvania has fallen sharply: down 73% on the route-weighted index since 1970.

-73%Since 1970
33Routes In State
43Years

Notable Common Nighthawk Trends in Pennsylvania

No notable trend signals for Common Nighthawk in Pennsylvania. See the full index history below.

Common Nighthawk Population Forecast in Pennsylvania

If the recent trend holds, Common Nighthawk in Pennsylvania is projected to stay roughly flat through 2027, near 0.00 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±205.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.00Projected 2027 index
0.00–0.0895% range
±205.5%Backtest error
19682027
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20230.010.000.08
20240.010.000.08
20250.010.000.08
20260.000.000.08
20270.000.000.08

Common Nighthawk Survey Routes in Pennsylvania

Routes recording Common Nighthawk in Pennsylvania.
Munson419791979
Ridgway319961988
Kittanning320041974
Sigel219971997
Greentown219891971
Virginia219711971
Hometown219981998
Aspers219811970
Labott219761976
Slippery Rk119891986
Clover119891989
Ferris Crnrs119961996
Pottersdale119951984
Jeannette119981981
Honesdale119741974
Susquehanna119761971
Beaver120141969
Plesant Grov120222022
Parkwood119811981
Brick Tavern119921992
Patton119811981
Bald Eagle120012001
Waterstreet119791968
Shrewsbury119961996
Clear Spring119821974

Common Nighthawk Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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