BirdAnalyst
Species · BCR 18 · BBS 2025 Release · 1966–2024

Great-tailed Grackle In Shortgrass Prairie

All regionsShortgrass PrairieGeneralists

Great-tailed Grackle in Shortgrass Prairie has surged: up 225× on the route-weighted index since 1974.

225×Since 1974
96Routes In Region
50Years

Notable Signals

long arc increasecomputed index

Great-tailed Grackle has surged in Shortgrass Prairie: up 225× on the route-weighted index since 1974.

Forecast

If the recent trend holds, Great-tailed Grackle in Shortgrass Prairie is projected to rise about 29% by 2029 — from 10 in 2024 to a central estimate of 13 (95% range 9.3–17). A 5-year backtest shows a typical error of ±17.3%, with 100% of held-out values landing inside the 95% band.

+29%Change by 2029
13Projected 2029 index
9.3–1795% range
±17.3%Backtest error
19692029
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
2025128.216
2026128.516
2027138.717
2028139.017
2029139.317

Routes In Shortgrass Prairie

Routes recording Great-tailed Grackle in Shortgrass Prairie.
LamesaTEXAS1322024
HookerOKLAHOMA1072024
HobbsNEW-MEXICO842024
PecosTEXAS802017
TwichellTEXAS742023
FrionaTEXAS612024
TenmileTEXAS592019
PlainsTEXAS552017
WakaTEXAS392024
DalhartTEXAS352024
MentoneTEXAS342015
PanhandleTEXAS332024
PlymellKANSAS322024
BethuneCOLORADO312018
KeyesOKLAHOMA302024
MidlandTEXAS292024
GruverTEXAS262024
CactusTEXAS262024
ClaytonvilleTEXAS252022
TexlineTEXAS242024
PostTEXAS222024
KermitTEXAS211999
Doyle Bridge 2COLORADO172022
CaprockNEW-MEXICO162024
PantexTEXAS152024

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