BirdAnalyst
Species · BCR 24 · BBS 2025 Release · 1966–2024

Great-tailed Grackle In Central Hardwoods

All regionsCentral HardwoodsGeneralists

Great-tailed Grackle in Central Hardwoods has declined: down 28% on the route-weighted index since 1993.

-28%Since 1993
16Routes In Region
26Years

Notable Signals

No notable trend signals for Great-tailed Grackle in Central Hardwoods. See the full index history below.

Forecast

If the recent trend holds, Great-tailed Grackle in Central Hardwoods is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±90.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.02Projected 2029 index
0.00–0.1095% range
±90.4%Backtest error
19862029
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
20250.030.000.10
20260.020.000.10
20270.020.000.10
20280.020.000.10
20290.020.000.10

Routes In Central Hardwoods

Routes recording Great-tailed Grackle in Central Hardwoods.
CassvilleMISSOURI62013
CentertonARKANSAS42011
SyracuseMISSOURI41996
PinevilleMISSOURI22014
ReedsMISSOURI22012
CentertownMISSOURI21997
Osage BeachMISSOURI22007
DiamondMISSOURI22024
AvocaARKANSAS12009
SwedenMISSOURI12009
HandleyMISSOURI11997
GraydonMISSOURI12017
HaydenMISSOURI12007
MarshfieldMISSOURI12003
BaronOKLAHOMA11993
ColcordOKLAHOMA12016

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