BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Common Grackle In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

Common Grackle in Badlands and Prairies has surged: up 95% on the route-weighted index since 1969.

+95%Since 1969
133Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Common Grackle has surged in Badlands and Prairies: up 95% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Common Grackle in Badlands and Prairies is projected to stay roughly flat through 2029, near 13 (95% range 7.6–18). A 5-year backtest shows a typical error of ±9.4%, with 100% of held-out values landing inside the 95% band.

-2%Change by 2029
13Projected 2029 index
7.6–1895% range
±9.4%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
2025127.318
2026127.418
2027137.418
2028137.518
2029137.618

Routes In Badlands and Prairies

Routes recording Common Grackle in Badlands and Prairies.
IsabelSOUTH-DAKOTA1812015
Cedar PassSOUTH-DAKOTA1802023
Eagle ButteSOUTH-DAKOTA1582015
ChamberlainSOUTH-DAKOTA1302011
BowmanNORTH-DAKOTA1222024
Ft ThompsonSOUTH-DAKOTA1202011
PromiseSOUTH-DAKOTA1012015
VolunteerSOUTH-DAKOTA1012019
RockyfordSOUTH-DAKOTA952023
ZapNORTH-DAKOTA832024
DickinsonNORTH-DAKOTA732024
SolenNORTH-DAKOTA612024
CrookstonNEBRASKA522024
RosebudSOUTH-DAKOTA482011
LacreekSOUTH-DAKOTA432023
CarsonNORTH-DAKOTA412024
OwankaSOUTH-DAKOTA392022
Dunn CenterNORTH-DAKOTA382024
GorhamNORTH-DAKOTA372018
WinnerSOUTH-DAKOTA362024
Cedar CreekNORTH-DAKOTA322022
Glen UllinNORTH-DAKOTA312022
Custer 2MONTANA282024
MaurineSOUTH-DAKOTA282024
LodgepoleSOUTH-DAKOTA272024

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