BirdAnalyst
Species · BCR 23 · BBS 2025 Release · 1966–2024

Clay-colored Sparrow In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionGeneralists

Clay-colored Sparrow in Prairie Hardwood Transition has declined: down 32% on the route-weighted index since 1968.

-32%Since 1968
86Routes In Region
58Years

Notable Signals

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

Forecast

If the recent trend holds, Clay-colored Sparrow in Prairie Hardwood Transition is projected to rise about 54% by 2029 — from 1.1 in 2024 to a central estimate of 1.8 (95% range 0.99–2.6). A 5-year backtest shows a typical error of ±124.9%, with 0% of held-out values landing inside the 95% band.

+54%Change by 2029
1.8Projected 2029 index
0.99–2.695% range
±124.9%Backtest error
19662029
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
20251.70.952.5
20261.70.962.5
20271.80.972.5
20281.80.982.5
20291.80.992.6

Routes In Prairie Hardwood Transition

Routes recording Clay-colored Sparrow in Prairie Hardwood Transition.
EdwardsMINNESOTA182024
KnappMINNESOTA172024
Brook ParkMINNESOTA162024
New LondonMINNESOTA152024
AshbyMINNESOTA102021
GlenwoodMINNESOTA92019
St StephenMINNESOTA82016
HudsonWISCONSIN82024
WeyerhauserWISCONSIN72024
HolwayWISCONSIN51989
GrimmsWISCONSIN52021
PrincetonMINNESOTA42024
Le CenterMINNESOTA42023
CascoWISCONSIN42024
Omro 2WISCONSIN42023
EvergreenMINNESOTA32024
CadottWISCONSIN32024
StratfordWISCONSIN32024
SaxevilleWISCONSIN32024
ManitowocWISCONSIN32021
EdenWISCONSIN32021
MerideanWISCONSIN32024
Buena VistaWISCONSIN32023
FestinaIOWA22019
OlaMICHIGAN21995

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