BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Orange-crowned Warbler In Great Basin

All regionsGreat BasinForest birds

Orange-crowned Warbler in Great Basin has edged down: down 21% on the route-weighted index since 1970.

-21%Since 1970
99Routes In Region
56Years

Notable Signals

No notable trend signals for Orange-crowned Warbler in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Orange-crowned Warbler in Great Basin is projected to rise about 16% by 2029 — from 0.28 in 2024 to a central estimate of 0.33 (95% range 0.12–0.53). A 5-year backtest shows a typical error of ±41.5%, with 100% of held-out values landing inside the 95% band.

+16%Change by 2029
0.33Projected 2029 index
0.12–0.5395% range
±41.5%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
20250.320.110.53
20260.320.110.53
20270.320.110.53
20280.320.110.53
20290.330.120.53

Routes In Great Basin

Routes recording Orange-crowned Warbler in Great Basin.
Magic MtnIDAHO162024
HyrumUTAH81978
IndexWASHINGTON71971
AustinNEVADA62018
Comins LakeNEVADA52014
PendletonOREGON42011
WinthropWASHINGTON41989
MacdoelCALIFORNIA32019
Fall River MillsCALIFORNIA32010
Ruby ValleyNEVADA31999
Mt HoodOREGON32024
Oak CityUTAH32010
ArdenvoirWASHINGTON31984
KendallWASHINGTON32024
PomeroyWASHINGTON32024
WaitsburgWASHINGTON31996
Medicine Mtn.CALIFORNIA22021
GiffordIDAHO22017
Daniels ResIDAHO21990
JarbidgeNEVADA22014
Humboldt NfNEVADA22018
Humboldt Nf 2NEVADA22024
Fish LakeOREGON22024
SistersOREGON22022
PauninaOREGON22011

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