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

Common Grackle Population Trend in Virginia

All statesGeneralists

Common Grackle in Virginia has collapsed: down 93% on the route-weighted index since 1968.

-93%Since 1968
88Routes In State
58Years

Notable Common Grackle Trends in Virginia

long arc declinecomputed index

Common Grackle has collapsed in Virginia: down 93% on the route-weighted index since 1968.

Common Grackle Population Forecast in Virginia

If the recent trend holds, Common Grackle in Virginia is projected to fall about 100% by 2029 — from 16 in 2024 to a central estimate of 0.00 (95% range 0.00–78). A 5-year backtest shows a typical error of ±127.5%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–7895% range
±127.5%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
20250.000.0078
20260.000.0078
20270.000.0078
20280.000.0078
20290.000.0078

Common Grackle Survey Routes in Virginia

Routes recording Common Grackle in Virginia.
Newbern18019821968
Backbay13419741966
Natural Brid10620241974
Ivanhoe8119681966
Jerome7820231971
Cornland7820141975
Marion7419821976
David6920131968
Edinburg6420241968
Brandy Station6420242017
Cape Charles5420181992
Quinby5320241966
Stanley5120241966
Appomattox5120241995
Chincoteag W4720241992
Port Royal4520191977
Dismal Swamp4020161992
Churchville3320241966
Colonial Pky3319981992
Waverly3219871967
Sharps3220241967
Great Falls3019781966
Gladys2720241994
White Stone2420241966
Brodnax2420241973

Common Grackle Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontwest-virginiawisconsinwyoming

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