BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Sora Population Trend in Oregon

All statesWetland birds

Sora in Oregon has declined: down 40% on the route-weighted index since 1974.

-40%Since 1974
51Routes In State
51Years

Notable Sora Trends in Oregon

No notable trend signals for Sora in Oregon. See the full index history below.

Sora Population Forecast in Oregon

If the recent trend holds, Sora in Oregon is projected to rise about 33% by 2029 — from 0.14 in 2024 to a central estimate of 0.19 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±29.3%, with 100% of held-out values landing inside the 95% band.

+33%Change by 2029
0.19Projected 2029 index
0.00–0.5295% range
±29.3%Backtest error
19722029
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
20250.200.000.53
20260.190.000.53
20270.190.000.53
20280.190.000.52
20290.190.000.52

Sora Survey Routes in Oregon

Routes recording Sora in Oregon.
Fish Lake1020241972
Three Forks520112011
Silver Creek420211991
Chinchalo420231993
Malheur Nwr319981987
Princeton319841973
Albee219951988
Flora220001998
Summit Pr220191981
Scappoose220102010
Bridgeport220211986
Modoc Point219741974
Adair220221996
Bly220011997
Unity220182018
Prospect220132007
Blitzen 2120002000
Ordnance119771977
Imnaha119831983
Deschutes120242019
Ochoco119801980
Wickiup119971997
Dell Spring119731973
Paisley120232021
Bly 2120232007

Sora Population Trend in Other States

alaskaarizonacaliforniacoloradoidahoillinoisindianaiowakansasmainemassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-dakotaohiopennsylvaniasouth-dakotautahvermontwashingtonwisconsinwyoming

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