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

Barred Owl Population Trend in Pennsylvania

All statesGeneralists

Barred Owl in Pennsylvania has surged: up 122% on the route-weighted index since 1970.

+122%Since 1970
73Routes In State
54Years

Notable Barred Owl Trends in Pennsylvania

long arc increasecomputed index

Barred Owl has surged in Pennsylvania: up 122% on the route-weighted index since 1970.

Barred Owl Population Forecast in Pennsylvania

If the recent trend holds, Barred Owl in Pennsylvania is projected to stay roughly flat through 2029, near 0.09 (95% range 0.04–0.13). A 5-year backtest shows a typical error of ±10.5%, with 100% of held-out values landing inside the 95% band.

+8%Change by 2029
0.09Projected 2029 index
0.04–0.1395% range
±10.5%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
20250.080.030.13
20260.080.030.13
20270.080.030.13
20280.080.030.13
20290.090.040.13

Barred Owl Survey Routes in Pennsylvania

Routes recording Barred Owl in Pennsylvania.
Starlight 2520242022
Russell City220151982
Rosecrans219821979
Cherry Sprs220211984
Mawr Glen220231967
Bow Bridge220182018
Peru Mills220231988
Naginey219931989
Collegeville220162016
Harrisville220032003
Clover120132013
Harmonsburg119761972
Ellenton120241988
Whig Hill119731966
Wyalusing120151985
Teepleville120211974
Rothrock Sf120181993
Lynch119971997
N Washington119891989
N Pine Grove119831983
Pottersdale120102010
Odin120101990
Betula120032001
Ridgway119951995
Eldred120131996

Barred Owl Population Trend in Other States

alabamaalaskaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomaoregonrhode-islandsouth-carolinatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

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