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Species · Ohio · BBS 2025 Release · 1966–2024

Worm-eating Warbler Population Trend in Ohio

All statesForest birds

Worm-eating Warbler in Ohio has surged: up 21× on the route-weighted index since 1980.

21×Since 1980
24Routes In State
40Years

Notable Worm-eating Warbler Trends in Ohio

long arc increasecomputed index

Worm-eating Warbler has surged in Ohio: up 21× on the route-weighted index since 1980.

Worm-eating Warbler Population Forecast in Ohio

If the recent trend holds, Worm-eating Warbler in Ohio is projected to rise about 46% by 2029 — from 0.53 in 2024 to a central estimate of 0.77 (95% range 0.12–1.4). A 5-year backtest shows a typical error of ±28.3%, with 100% of held-out values landing inside the 95% band.

+46%Change by 2029
0.77Projected 2029 index
0.12–1.495% range
±28.3%Backtest error
19692029
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
20250.740.081.4
20260.740.091.4
20270.750.101.4
20280.760.111.4
20290.770.121.4

Worm-eating Warbler Survey Routes in Ohio

Routes recording Worm-eating Warbler in Ohio.
Tar Hollow920241992
Shawnee S.F. 2820192001
Zaleski S.F.520241992
Wayne N.F.320241992
Pike S.F.320001992
Shawnee S.F.220001992
Meadowbrook219951992
Ray220241992
Lockport120102010
Scioto Trail120131992
Tick Ridge120171993
Mohican S.F.120241992
Lenox120102009
Birmingham119911991
Dresden120211980
South Olive120072002
Wilgus120031992
Omega120041997
Bolins Mills120231978
Dell120171994
Pomeroy120221982
Rome119691969
Scioto Furn120212001
Keene120032001

Worm-eating Warbler Population Trend in Other States

alabamaarkansasconnecticutdelawaregeorgiaillinoisindianaiowakentuckylouisianamarylandmassachusettsmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaoklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawest-virginiawisconsin

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