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

Chipping Sparrow Population Trend in Massachusetts

All statesGeneralists

Chipping Sparrow in Massachusetts has surged: up 109% on the route-weighted index since 1968.

+109%Since 1968
32Routes In State
58Years

Notable Chipping Sparrow Trends in Massachusetts

long arc increasecomputed index

Chipping Sparrow has surged in Massachusetts: up 109% on the route-weighted index since 1968.

Chipping Sparrow Population Forecast in Massachusetts

If the recent trend holds, Chipping Sparrow in Massachusetts is projected to rise about 19% by 2029 — from 29 in 2024 to a central estimate of 35 (95% range 29–42). A 5-year backtest shows a typical error of ±8.1%, with 100% of held-out values landing inside the 95% band.

+19%Change by 2029
35Projected 2029 index
29–4295% range
±8.1%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
2025332740
2026342740
2027342841
2028352841
2029352942

Chipping Sparrow Survey Routes in Massachusetts

Routes recording Chipping Sparrow in Massachusetts.
Brockton11120191967
Chesterfield5220241967
Wellfleet 24620242016
Mansfield4520241968
Belchertown4520241967
S Barre4520241968
Marion4020241966
Newburyport3920221967
Prattville3820191966
Pittsfield3820161967
Maynard3520221967
N Orange3220241968
Warren 22820242010
Holden2620241977
Cape Cod Ns2320071989
E Pepperell2119941966
Warren2120091968
Monterey2120242019
Gay Head1720241996
N. Andover1620241995
Sheffield1520221969
Wellfleet1120071966
N Oxford1120241968
Cummington1020141968
Cummington 21020242015

Chipping Sparrow Population Trend in Other States

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

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