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Species · Oklahoma · BBS 2025 Release · 1966–2024

Great-tailed Grackle Population Trend in Oklahoma

All statesGeneralists

Great-tailed Grackle in Oklahoma has surged: up 18× on the route-weighted index since 1969.

18×Since 1969
56Routes In State
57Years

Notable Great-tailed Grackle Trends in Oklahoma

long arc increasecomputed index

Great-tailed Grackle has surged in Oklahoma: up 18× on the route-weighted index since 1969.

Great-tailed Grackle Population Forecast in Oklahoma

If the recent trend holds, Great-tailed Grackle in Oklahoma is projected to fall about 49% by 2029 — from 5.6 in 2024 to a central estimate of 2.8 (95% range 0.00–7.3). A 5-year backtest shows a typical error of ±39.9%, with 100% of held-out values landing inside the 95% band.

-49%Change by 2029
2.8Projected 2029 index
0.00–7.395% range
±39.9%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
20252.80.007.3
20262.80.007.3
20272.80.007.3
20282.80.007.3
20292.80.007.3

Great-tailed Grackle Survey Routes in Oklahoma

Routes recording Great-tailed Grackle in Oklahoma.
Cookietown42220061968
Hooker10720241992
Jet3420161992
Keyes3020241999
Beggs2720231968
Reed1220161976
Indianola920241970
Tatums720181997
Grimes620021990
Felt620241993
Cooperton620211998
Hollis620231995
Clear Lake620242015
Ft Sill East619941994
Tegarden520051978
Hardesty520061975
Sickles520181993
Mcalester419911971
Peoria420151979
Blanco319901978
Phillips320051970
Ardmore320041967
Verden320091969
Collinsville320191991
Wainwright320031992

Great-tailed Grackle Population Trend in Other States

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