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

Sora In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionWetland birds

Sora in Prairie Hardwood Transition has collapsed: down 79% on the route-weighted index since 1968.

-79%Since 1968
88Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Sora has collapsed in Prairie Hardwood Transition: down 79% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Sora in Prairie Hardwood Transition is projected to fall about 17% by 2029 — from 0.09 in 2024 to a central estimate of 0.07 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±225.4%, with 100% of held-out values landing inside the 95% band.

-17%Change by 2029
0.07Projected 2029 index
0.00–0.2695% range
±225.4%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
20250.080.000.27
20260.080.000.27
20270.080.000.27
20280.070.000.27
20290.070.000.26

Routes In Prairie Hardwood Transition

Routes recording Sora in Prairie Hardwood Transition.
OsseoMINNESOTA32019
New LondonMINNESOTA32024
GlenwoodMINNESOTA32019
AshbyMINNESOTA32019
DresserWISCONSIN32017
MerrillWISCONSIN31973
MinnetonkaMINNESOTA22024
KnappMINNESOTA22019
Sherburne NrMINNESOTA22024
HudsonWISCONSIN21996
HolwayWISCONSIN21978
Stevens PtWISCONSIN22019
Oconto FallsWISCONSIN22004
OmroWISCONSIN21996
BrownsvilleWISCONSIN21975
Buena VistaWISCONSIN22014
PackertownINDIANA11983
EllisINDIANA11983
Indiana DuneINDIANA12009
FestinaIOWA11975
ScottvilleMICHIGAN11974
Big Blue LkMICHIGAN12015
Big RapidsMICHIGAN11986
NashvilleMICHIGAN12015
CoopersvilleMICHIGAN12021

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