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

Chipping Sparrow Population Trend in Connecticut

All statesGeneralists

Chipping Sparrow in Connecticut has increased: up 30% on the route-weighted index since 1968.

+30%Since 1968
20Routes In State
58Years

Notable Chipping Sparrow Trends in Connecticut

No notable trend signals for Chipping Sparrow in Connecticut. See the full index history below.

Chipping Sparrow Population Forecast in Connecticut

If the recent trend holds, Chipping Sparrow in Connecticut is projected to rise about 39% by 2029 — from 26 in 2024 to a central estimate of 36 (95% range 25–47). A 5-year backtest shows a typical error of ±42.9%, with 40% of held-out values landing inside the 95% band.

+39%Change by 2029
36Projected 2029 index
25–4795% range
±42.9%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
2025352346
2026352446
2027352447
2028362447
2029362547

Chipping Sparrow Survey Routes in Connecticut

Routes recording Chipping Sparrow in Connecticut.
Warren7720111972
Uncasville6920241973
Mid Haddam4220241973
Sherman4120191972
Willimantic3320181967
Greenwich3320181967
Long Hill3120191972
Woodstock3020071968
Woodstock 22320242016
New Hartford2220241994
Buckingham2020221966
No Woodbury2020241967
New Hartford1819871972
Westbrook1620241969
Mystic1520231973
Southington1520241973
Granby1520241988
E Hartland1319921966
Danbury1320231968
Warren 21220242012

Chipping Sparrow Population Trend in Other States

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

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