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

Indigo Bunting Population Trend in Massachusetts

All statesGeneralists

Indigo Bunting in Massachusetts has surged: up 85% on the route-weighted index since 1968.

+85%Since 1968
30Routes In State
58Years

Notable Indigo Bunting Trends in Massachusetts

long arc increasecomputed index

Indigo Bunting has surged in Massachusetts: up 85% on the route-weighted index since 1968.

Indigo Bunting Population Forecast in Massachusetts

If the recent trend holds, Indigo Bunting in Massachusetts is projected to stay roughly flat through 2029, near 2.9 (95% range 1.7–4.2). A 5-year backtest shows a typical error of ±11.7%, with 100% of held-out values landing inside the 95% band.

-10%Change by 2029
2.9Projected 2029 index
1.7–4.295% range
±11.7%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
20252.91.64.1
20262.91.74.1
20272.91.74.1
20282.91.74.1
20292.91.74.2

Indigo Bunting Survey Routes in Massachusetts

Routes recording Indigo Bunting in Massachusetts.
Chesterfield1320241969
Pittsfield1020161969
Monterey1020242019
Belchertown820241967
S Barre620241968
Cummington 2520242015
Cummington420141968
Sheffield420221969
Warren 2420242010
Newburyport320001967
E Pepperell319941966
Cheshire319941969
Maynard220221967
Littleton220231967
Princeton219751969
Warren220091968
N Orange220241968
Ware River220221993
Hancock220151997
E Dennis120131982
Chilmark119831983
Marion120181975
Wellfleet119901966
Prattville120191973
Brockton120111975

Indigo Bunting Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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