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

Common Grackle Population Trend in Alabama

All statesGeneralists

Common Grackle in Alabama has collapsed: down 85% on the route-weighted index since 1968.

-85%Since 1968
109Routes In State
58Years

Notable Common Grackle Trends in Alabama

long arc declinecomputed index

Common Grackle has collapsed in Alabama: down 85% on the route-weighted index since 1968.

Common Grackle Population Forecast in Alabama

If the recent trend holds, Common Grackle in Alabama is projected to fall about 100% by 2029 — from 6.8 in 2024 to a central estimate of 0.00 (95% range 0.00–11). A 5-year backtest shows a typical error of ±67.4%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1195% range
±67.4%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
20251.90.0013
20260.980.0012
20270.070.0011
20280.000.0011
20290.000.0011

Common Grackle Survey Routes in Alabama

Routes recording Common Grackle in Alabama.
Alabama Pt23220031966
Foley15919841966
Elberta11120221986
Birmingham8719951970
Dawson8519981966
Dauphin Is8119901966
St. Elmo5420211996
Dearmanville5219831966
Summitt4219811966
Alabama Pt 23920192004
Pine Grove3720241966
Elkmont3220241990
Bon Secour3020231993
Wheeler Dam2620231993
Warrior Std2420241966
Lakeview2320241999
Hillsboro1919961966
Carter Grove1920232002
Greensport1720241966
Chacaloochee Bay1720192009
Stevenson1620241996
Swaim1520241966
St Florian1320241967
Valhermoso Spgs1320101966
Newton1320241966

Common Grackle Population Trend in Other States

arkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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