BirdAnalyst
Species · New Hampshire · BBS 2025 Release · 1966–2024

House Sparrow Population Trend in New Hampshire

All statesGeneralists

House Sparrow in New Hampshire has declined: down 39% on the route-weighted index since 1968.

-39%Since 1968
23Routes In State
58Years

Notable House Sparrow Trends in New Hampshire

No notable trend signals for House Sparrow in New Hampshire. See the full index history below.

House Sparrow Population Forecast in New Hampshire

If the recent trend holds, House Sparrow in New Hampshire is projected to fall about 32% by 2029 — from 5.5 in 2024 to a central estimate of 3.7 (95% range 0.88–6.6). A 5-year backtest shows a typical error of ±29.1%, with 100% of held-out values landing inside the 95% band.

-32%Change by 2029
3.7Projected 2029 index
0.88–6.695% range
±29.1%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
20254.01.26.9
20264.01.16.8
20273.91.06.7
20283.80.966.6
20293.70.886.6

House Sparrow Survey Routes in New Hampshire

Routes recording House Sparrow in New Hampshire.
Dover2420241966
Epsom2020231966
Brentwood1919981966
East Kingston1820241999
Fitzwilliam1720241966
Glen1620241975
Concord1520241966
Marlow1020241966
Peterborough820241967
Canterbury620241966
Strafford420241966
Mt Chocorua320231966
Stratford319981966
Hopkinton220241966
Wilmot220221968
Dixvil Notch219961967
Gilmantn I W120241970
Walpole120231966
Lempster120091966
Jefferson Hl120231972
Franconia120211967
Milan120221966
Clarksville119991966

House Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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