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

Black-throated Gray Warbler In Great Basin

All regionsGreat BasinForest birds

Black-throated Gray Warbler in Great Basin has held roughly steady: down 7% on the route-weighted index since 1970.

-7%Since 1970
78Routes In Region
56Years

Notable Signals

No notable trend signals for Black-throated Gray Warbler in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Black-throated Gray Warbler in Great Basin is projected to fall about 23% by 2029 — from 0.91 in 2024 to a central estimate of 0.70 (95% range 0.23–1.2). A 5-year backtest shows a typical error of ±29%, with 100% of held-out values landing inside the 95% band.

-23%Change by 2029
0.70Projected 2029 index
0.23–1.295% range
±29%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
20250.690.221.2
20260.690.221.2
20270.690.231.2
20280.690.231.2
20290.700.231.2

Routes In Great Basin

Routes recording Black-throated Gray Warbler in Great Basin.
Mt HoodOREGON232024
IndexWASHINGTON201971
KendallWASHINGTON202024
NewhalemWASHINGTON172024
Badger CreekOREGON142024
E. Mt. AdamsWASHINGTON132024
GlacierWASHINGTON102024
BartleCALIFORNIA82021
NewcastleUTAH72022
White ChuckWASHINGTON62024
Suiattle RivWASHINGTON62018
ConcreteWASHINGTON62024
Humboldt NfNEVADA52015
Big PineCALIFORNIA42024
RanchograndeNEVADA42023
Oak CityUTAH42014
Grouse CreekUTAH41982
SnowdenWASHINGTON42024
MacdoelCALIFORNIA32012
Deep SpringsCALIFORNIA32022
IllipahNEVADA32021
WillisNEVADA32024
BuchananOREGON31972
VernonUTAH32023
Cascade RivWASHINGTON32006

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