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

Greater Prairie-Chicken In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionGrassland birds

Greater Prairie-Chicken in Prairie Hardwood Transition has declined: down 37% on the route-weighted index since 1978.

-37%Since 1978
4Routes In Region
25Years

Notable Signals

No notable trend signals for Greater Prairie-Chicken in Prairie Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Greater Prairie-Chicken in Prairie Hardwood Transition is projected to stay roughly flat through 2027, near 0.02 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±351.9%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.02Projected 2027 index
0.00–0.1095% range
±351.9%Backtest error
19752027
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
20230.030.000.10
20240.020.000.10
20250.020.000.10
20260.020.000.10
20270.020.000.10

Routes In Prairie Hardwood Transition

Routes recording Greater Prairie-Chicken in Prairie Hardwood Transition.
UnityWISCONSIN32001
Wis RapidsWISCONSIN12002
ColbyWISCONSIN12002
Buena VistaWISCONSIN12022

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