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

Indigo Bunting Population Trend in Maine

All statesGeneralists

Indigo Bunting in Maine has surged: up 283% on the route-weighted index since 1968.

+283%Since 1968
58Routes In State
55Years

Notable Indigo Bunting Trends in Maine

long arc increasecomputed index

Indigo Bunting has surged in Maine: up 283% on the route-weighted index since 1968.

Indigo Bunting Population Forecast in Maine

If the recent trend holds, Indigo Bunting in Maine is projected to fall about 23% by 2029 — from 1.7 in 2024 to a central estimate of 1.3 (95% range 0.61–2.1). A 5-year backtest shows a typical error of ±24.3%, with 100% of held-out values landing inside the 95% band.

-23%Change by 2029
1.3Projected 2029 index
0.61–2.195% range
±24.3%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
20251.30.552.0
20261.30.562.0
20271.30.582.0
20281.30.592.1
20291.30.612.1

Indigo Bunting Survey Routes in Maine

Routes recording Indigo Bunting in Maine.
Brooks920191983
Harmony820241979
Hartford620241976
Newcastle520242007
Turner520101973
Charleston520191981
Bethel420211977
South Arm419991983
Bowdoin Ctr320211979
Manchester319951974
Carrabassett320181991
Waite319771977
Cornville320242012
Westbrook220241977
Wilson Mills219891983
Reeds220221990
Otisfield Gr220151977
East Troy220181981
Warren219851982
Freedom220192006
Hermon220191966
Hancock219851969
Moose River220011989
Cambridge220101985
Winn220221978

Indigo Bunting Population Trend in Other States

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

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