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

Common Grackle In Shortgrass Prairie

All regionsShortgrass PrairieGeneralists

Common Grackle in Shortgrass Prairie has surged: up 191% on the route-weighted index since 1969.

+191%Since 1969
122Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Common Grackle has surged in Shortgrass Prairie: up 191% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Common Grackle in Shortgrass Prairie is projected to rise about 37% by 2029 — from 20 in 2024 to a central estimate of 27 (95% range 7.3–47). A 5-year backtest shows a typical error of ±46.6%, with 100% of held-out values landing inside the 95% band.

+37%Change by 2029
27Projected 2029 index
7.3–4795% range
±46.6%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
2025266.146
2026266.447
2027276.747
2028277.047
2029277.347

Routes In Shortgrass Prairie

Routes recording Common Grackle in Shortgrass Prairie.
LingleWYOMING2602024
HudsonCOLORADO1542024
JulesburgCOLORADO1362021
Hay SpringsNEBRASKA1302024
PaxtonNEBRASKA962016
UlyssesKANSAS922024
BennettCOLORADO912018
Fort MorganCOLORADO842024
BereaNEBRASKA742019
PlymellKANSAS662024
Prospect ValCOLORADO652000
HookerOKLAHOMA602024
WaverlyCOLORADO582019
DaltonNEBRASKA572024
NunnCOLORADO522021
Agate 2NEBRASKA502024
FloydadaTEXAS502023
BrownsonNEBRASKA472021
AmherstCOLORADO432024
FlaglerCOLORADO422024
Prospect Valley 2COLORADO422023
RuletonKANSAS412022
StonehamCOLORADO362021
ChanningTEXAS352018
YoderWYOMING352024

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