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

House Finch Population Trend in Pennsylvania

All statesGeneralists

House Finch in Pennsylvania has surged: up 70× on the route-weighted index since 1973.

70×Since 1973
125Routes In State
53Years

Notable House Finch Trends in Pennsylvania

long arc increasecomputed index

House Finch has surged in Pennsylvania: up 70× on the route-weighted index since 1973.

House Finch Population Forecast in Pennsylvania

If the recent trend holds, House Finch in Pennsylvania is projected to rise about 73% by 2029 — from 6.9 in 2024 to a central estimate of 12 (95% range 0.22–24). A 5-year backtest shows a typical error of ±93.6%, with 100% of held-out values landing inside the 95% band.

+73%Change by 2029
12Projected 2029 index
0.22–2495% range
±93.6%Backtest error
19692029
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
2025120.0023
2026120.0023
2027120.0523
2028120.1323
2029120.2224

House Finch Survey Routes in Pennsylvania

Routes recording House Finch in Pennsylvania.
West Grove6119961977
Ryde5620051979
Gatchelville5419901977
Middletown4720241977
Akron4119971989
Quakertown3919891975
Aspers3419891980
Mt Gretna3220001988
Leola3220241998
Slippery Rk3019941984
Mt Gretna 23020222001
Jacobus3020241986
Pottstown2919871986
Drehersville 22820242000
Labott2619831978
Scheafferstn2520011992
Millville2420241979
Mount Joy2320241988
Schwenksvill2220241988
Berwick2120241985
Ramsey2020231978
Brunnerville 22020242010
Stoneybreak2020241992
Portersville1719881988
Clearfield1620241980

House Finch Population Trend in Other States

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

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