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

House Finch Population Trend in Maine

All statesGeneralists

House Finch in Maine has surged: up 568% on the route-weighted index since 1980.

+568%Since 1980
43Routes In State
46Years

Notable House Finch Trends in Maine

long arc increasecomputed index

House Finch has surged in Maine: up 568% on the route-weighted index since 1980.

House Finch Population Forecast in Maine

If the recent trend holds, House Finch in Maine is projected to fall about 54% by 2029 — from 1.8 in 2024 to a central estimate of 0.83 (95% range 0.00–3.7). A 5-year backtest shows a typical error of ±55.5%, with 100% of held-out values landing inside the 95% band.

-54%Change by 2029
0.83Projected 2029 index
0.00–3.795% range
±55.5%Backtest error
19782029
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
20251.000.003.9
20260.950.003.8
20270.910.003.8
20280.870.003.8
20290.830.003.7

House Finch Survey Routes in Maine

Routes recording House Finch in Maine.
Kittery Pt2020241979
Manchester719951981
Jefferson620101991
Turner520101984
Cape Neddick420241979
Biddeford420191978
East Troy420181988
Warren419901987
Westbrook320241980
Newcastle320241982
Harmony320141990
Hancock320121991
Greenville320162016
Otisfield Gr220151982
Brooks219961989
Deblois219921992
Carrying Pl220051995
Charleston220161994
Winn219991999
Cornville220242022
Searsport220072002
Brownfield220092009
Wilson Mills120012001
Bethel120111988
Greenwood120241984

House Finch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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