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

Eastern Whip-poor-will Population Trend in Pennsylvania

All statesAerial insectivores

Eastern Whip-poor-will in Pennsylvania has declined: down 40% on the route-weighted index since 1968.

-40%Since 1968
52Routes In State
58Years

Notable Eastern Whip-poor-will Trends in Pennsylvania

No notable trend signals for Eastern Whip-poor-will in Pennsylvania. See the full index history below.

Eastern Whip-poor-will Population Forecast in Pennsylvania

If the recent trend holds, Eastern Whip-poor-will in Pennsylvania is projected to fall about 62% by 2029 — from 0.16 in 2024 to a central estimate of 0.06 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±78%, with 80% of held-out values landing inside the 95% band.

-62%Change by 2029
0.06Projected 2029 index
0.00–0.2195% range
±78%Backtest error
19662029
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
20250.070.000.22
20260.060.000.22
20270.060.000.22
20280.060.000.21
20290.060.000.21

Eastern Whip-poor-will Survey Routes in Pennsylvania

Routes recording Eastern Whip-poor-will in Pennsylvania.
Tussey Mtn.620241993
Roulette319891989
Mill Run319811979
Wild Creek219991988
Rothrock Sf220101992
Pottersdale220182017
Rasselas220222022
Ramsey220151968
English Ctr219771967
Poyntelle220172017
Stoneybreak220232015
South Mtn220171989
Pine Gr Mill220241967
Needmore219881966
Whig Hill119871972
Broad Mtn.120241994
N Washington119701970
Lovelton120242000
Sproul Sf-A120242002
Sproul Sf-B120162016
Mars120232023
Arnot119741969
Rosecrans120231969
Ravensburg119751975
Mawr Glen119761967

Eastern Whip-poor-will Population Trend in Other States

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

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