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Species · Virginia · BBS 2025 Release · 1966–2024

Black-throated Green Warbler Population Trend in Virginia

All statesForest birds

Black-throated Green Warbler in Virginia has surged: up 751% on the route-weighted index since 1968.

+751%Since 1968
29Routes In State
58Years

Notable Black-throated Green Warbler Trends in Virginia

long arc increasecomputed index

Black-throated Green Warbler has surged in Virginia: up 751% on the route-weighted index since 1968.

Black-throated Green Warbler Population Forecast in Virginia

If the recent trend holds, Black-throated Green Warbler in Virginia is projected to rise about 87% by 2029 — from 0.54 in 2024 to a central estimate of 1.0 (95% range 0.56–1.4). A 5-year backtest shows a typical error of ±88.4%, with 40% of held-out values landing inside the 95% band.

+87%Change by 2029
1.0Projected 2029 index
0.56–1.495% range
±88.4%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
20250.940.491.4
20260.950.511.4
20270.970.531.4
20280.990.541.4
20291.00.561.4

Black-throated Green Warbler Survey Routes in Virginia

Routes recording Black-throated Green Warbler in Virginia.
Mountain Lk.1420181992
Pine Mtn.1020241996
Iron Mountain 2920132012
Iron Mountain 3920232014
Iron Mtn.720111992
Covington620241966
W Augusta520241967
Gr North Mtn520231993
Glenwood520231992
Rural Retrt420241985
Big Meadows320181993
Marion319771976
Bald Knob220241992
Saltville220231978
Elamsville220161992
Cornland219751975
Jerome120082005
New Market120122002
Douthat120141994
Shenandoa Np120141995
Isom120001972
Putnam120171977
Walkers120092005
Pw Forest Pk120041998
Amherst120072007

Black-throated Green Warbler Population Trend in Other States

alabamaarkansasconnecticutgeorgiaindianakentuckymainemarylandmassachusettsmichiganminnesotamissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseevermontwest-virginiawisconsin

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