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

Common Grackle Population Trend in Texas

All statesGeneralists

Common Grackle in Texas has surged: up 81% on the route-weighted index since 1969.

+81%Since 1969
174Routes In State
57Years

Notable Common Grackle Trends in Texas

long arc increasecomputed index

Common Grackle has surged in Texas: up 81% on the route-weighted index since 1969.

Common Grackle Population Forecast in Texas

If the recent trend holds, Common Grackle in Texas is projected to rise about 47% by 2029 — from 5.2 in 2024 to a central estimate of 7.7 (95% range 0.00–20). A 5-year backtest shows a typical error of ±82.4%, with 100% of held-out values landing inside the 95% band.

+47%Change by 2029
7.7Projected 2029 index
0.00–2095% range
±82.4%Backtest error
19672029
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
20258.00.0020
20268.00.0020
20277.90.0020
20287.80.0020
20297.70.0020

Common Grackle Survey Routes in Texas

Routes recording Common Grackle in Texas.
Chandler9020041968
Henrietta8420221971
Mount Zion8320241994
Katy5820241968
Chinquapin5820241995
Booker5120241976
Floydada5020232003
Weinert4119941972
Wolfe City3519871969
Channing3520181970
Gause3319971967
Indianola3120241971
Twichell2720231996
Texline2620241975
Muldoon2420241971
Charlie2320241994
Rock Island2120241967
Blue Ridge2120241988
Beaver Creek2120241994
Stowell2020221972
Manor2020242012
Hobson1820241992
Port Acres1820241994
Girard1820221994
Williams1820241998

Common Grackle Population Trend in Other States

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

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