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

Boat-tailed Grackle Population Trend in Georgia

All statesGeneralists

Boat-tailed Grackle in Georgia has collapsed: down 93% on the route-weighted index since 1969.

-93%Since 1969
15Routes In State
52Years

Notable Boat-tailed Grackle Trends in Georgia

long arc declinecomputed index

Boat-tailed Grackle has collapsed in Georgia: down 93% on the route-weighted index since 1969.

Boat-tailed Grackle Population Forecast in Georgia

If the recent trend holds, Boat-tailed Grackle in Georgia is projected to fall about 100% by 2029 — from 0.14 in 2024 to a central estimate of 0.00 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±455.7%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–2.095% range
±455.7%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
20250.000.002.0
20260.000.002.0
20270.000.002.0
20280.000.002.0
20290.000.002.0

Boat-tailed Grackle Survey Routes in Georgia

Routes recording Boat-tailed Grackle in Georgia.
Darien7520191966
Colonels Island4420232005
Newton2120162016
Owensboro420242021
Guyton319721968
Tarver320242019
Harrietts Bl220241990
Woodbine220112011
Pineora220092009
Everett City120191979
Ousley120192015
Keller119941976
Boston120232023
Riceboro119981998
Baldwin119701970

Boat-tailed Grackle Population Trend in Other States

alabamadelawarefloridalouisianamarylandmississippinew-jerseynew-yorknorth-carolinasouth-carolinatexasvirginia

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