BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Clay-colored Sparrow In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieGeneralists

Clay-colored Sparrow in Eastern Tallgrass Prairie has edged down: down 15% on the route-weighted index since 1970.

-15%Since 1970
11Routes In Region
53Years

Notable Signals

No notable trend signals for Clay-colored Sparrow in Eastern Tallgrass Prairie. See the full index history below.

Forecast

If the recent trend holds, Clay-colored Sparrow in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±65.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.02Projected 2029 index
0.00–0.0795% range
±65.6%Backtest error
19682029
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
20250.020.000.07
20260.020.000.07
20270.020.000.07
20280.020.000.07
20290.020.000.07

Routes In Eastern Tallgrass Prairie

Routes recording Clay-colored Sparrow in Eastern Tallgrass Prairie.
River FallsWISCONSIN52024
Kankakee SandsINDIANA22024
ComptonILLINOIS11972
WayneILLINOIS12003
PiersonIOWA12018
Davis CornerIOWA12022
Ash CreekMINNESOTA12015
LakevilleMINNESOTA12017
Le RoyMINNESOTA12019
AustinMINNESOTA12021
FrontenacMINNESOTA12024

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