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

Yellow Warbler Population Trend in Maine

All statesForest birds

Yellow Warbler in Maine has declined: down 42% on the route-weighted index since 1968.

-42%Since 1968
72Routes In State
58Years

Notable Yellow Warbler Trends in Maine

No notable trend signals for Yellow Warbler in Maine. See the full index history below.

Yellow Warbler Population Forecast in Maine

If the recent trend holds, Yellow Warbler in Maine is projected to fall about 43% by 2029 — from 4.0 in 2024 to a central estimate of 2.3 (95% range 0.00–7.0). A 5-year backtest shows a typical error of ±43.4%, with 100% of held-out values landing inside the 95% band.

-43%Change by 2029
2.3Projected 2029 index
0.00–7.095% range
±43.4%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
20252.70.007.4
20262.60.007.3
20272.50.007.2
20282.40.007.1
20292.30.007.0

Yellow Warbler Survey Routes in Maine

Routes recording Yellow Warbler in Maine.
Washburn4020051979
St David4020051982
Ft Fairfield3020051993
Benton2419801972
Warren1919901973
Hermon1820191966
East Troy1520191972
Cornville1520242012
Turner 21520242011
Manchester1319951971
Charleston1320191975
Newcastle1120241971
Jefferson1020101991
Harmony920241967
Brooks920191977
Turner820101972
Boundary720161993
Otisfield Gr620151966
Benedicta620191976
Ludlow619981968
Biddeford520181973
Kittery Pt520241966
Freedom520221973
Baker Lake520051998
Hartford420241975

Yellow Warbler Population Trend in Other States

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

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