BirdAnalyst
Species · New Hampshire · BBS 2025 Release · 1966–2024

Yellow Warbler Population Trend in New Hampshire

All statesForest birds

Yellow Warbler in New Hampshire has held roughly steady: up 7% on the route-weighted index since 1968.

+7%Since 1968
25Routes In State
58Years

Notable Yellow Warbler Trends in New Hampshire

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

Yellow Warbler Population Forecast in New Hampshire

If the recent trend holds, Yellow Warbler in New Hampshire is projected to stay roughly flat through 2029, near 3.7 (95% range 1.4–5.9). A 5-year backtest shows a typical error of ±8.5%, with 100% of held-out values landing inside the 95% band.

-6%Change by 2029
3.7Projected 2029 index
1.4–5.995% range
±8.5%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
20253.81.56.0
20263.71.56.0
20273.71.55.9
20283.71.55.9
20293.71.45.9

Yellow Warbler Survey Routes in New Hampshire

Routes recording Yellow Warbler in New Hampshire.
Fitzwilliam1120241966
Canterbury1120241966
Milan1120241966
Dover720241966
Concord620241966
Stratford620241966
East Kingston520241999
Brentwood419981966
Mt Chocorua420241970
Walpole420241966
Marlow420241966
Strafford320241966
Jefferson Hl320241966
Lempster220241969
Glen220241976
Peterborough120231966
Hopkinton120241966
Epsom120211966
Gilmantn I W120241969
Wilmot120241966
Franconia120041966
Dixvil Notch120171966
Clarksville120241974
Jeffers Ntch120241993
Dixville Notch 2120242019

Yellow Warbler Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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