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

Common Grackle Population Trend in Georgia

All statesGeneralists

Common Grackle in Georgia has collapsed: down 79% on the route-weighted index since 1968.

-79%Since 1968
110Routes In State
58Years

Notable Common Grackle Trends in Georgia

long arc declinecomputed index

Common Grackle has collapsed in Georgia: down 79% on the route-weighted index since 1968.

Common Grackle Population Forecast in Georgia

If the recent trend holds, Common Grackle in Georgia is projected to fall about 98% by 2029 — from 12 in 2024 to a central estimate of 0.23 (95% range 0.00–8.4). A 5-year backtest shows a typical error of ±60.2%, with 60% of held-out values landing inside the 95% band.

-98%Change by 2029
0.23Projected 2029 index
0.00–8.495% range
±60.2%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
20253.60.0012
20262.80.0011
20271.90.0010
20281.10.009.2
20290.230.008.4

Common Grackle Survey Routes in Georgia

Routes recording Common Grackle in Georgia.
Rock Branch13420242005
Metasville7020001997
Weber6220242013
Fitzgerald4320241966
Ware Co4320241986
Douglas4219841978
Henderson4120241973
Guyton3719931966
Hollonville3120031973
Ousley3120242015
Lakeview3120242006
Crest3020231973
Fairplay2819911966
Newton2720241975
Keller2519941975
Wrightsville2020241966
Tarver1920241991
Glenmore1920242013
Waycross1819841970
Big Oak1820242007
Shiloh1820242012
Lyons1719941966
Coffee Co1720241986
Everett City1620191976
Hiram1520181975

Common Grackle Population Trend in Other States

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

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