BirdAnalyst
Species · BCR 5 · BBS 2025 Release · 1966–2024

Black-throated Gray Warbler In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Black-throated Gray Warbler in Northern Pacific Rainforest has declined: down 32% on the route-weighted index since 1970.

-32%Since 1970
124Routes In Region
56Years

Notable Signals

No notable trend signals for Black-throated Gray Warbler in Northern Pacific Rainforest. See the full index history below.

Forecast

If the recent trend holds, Black-throated Gray Warbler in Northern Pacific Rainforest is projected to rise about 20% by 2029 — from 3.1 in 2024 to a central estimate of 3.8 (95% range 1.7–5.9). A 5-year backtest shows a typical error of ±33.7%, with 100% of held-out values landing inside the 95% band.

+20%Change by 2029
3.8Projected 2029 index
1.7–5.995% range
±33.7%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
20253.91.86.0
20263.91.86.0
20273.81.75.9
20283.81.75.9
20293.81.75.9

Routes In Northern Pacific Rainforest

Routes recording Black-throated Gray Warbler in Northern Pacific Rainforest.
Horse CreekCALIFORNIA542019
CougarWASHINGTON332023
MontesandWASHINGTON272024
Hay ForkCALIFORNIA252017
OrleansCALIFORNIA242012
RuchOREGON232023
Martins FyCALIFORNIA212009
FisherOREGON192010
SvensenOREGON181992
Raymond 2WASHINGTON182024
Shasta LakeCALIFORNIA152024
Orleans 2CALIFORNIA152014
HiouchiCALIFORNIA152014
AlderpointCALIFORNIA142012
Ship Mtn.CALIFORNIA142017
Whiskey Spg.OREGON142022
LoraneOREGON142024
NeiltonWASHINGTON131975
HoneydewCALIFORNIA122017
Big FlatCALIFORNIA122014
WinberryOREGON122023
KamilcheWASHINGTON122024
LongvaleCALIFORNIA112023
KorbelCALIFORNIA112024
Mt. AdamsWASHINGTON112024

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