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

MacGillivray's Warbler In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

MacGillivray's Warbler in Northern Pacific Rainforest has declined: down 47% on the route-weighted index since 1970.

-47%Since 1970
132Routes In Region
56Years

Notable Signals

No notable trend signals for MacGillivray's Warbler in Northern Pacific Rainforest. See the full index history below.

Forecast

If the recent trend holds, MacGillivray's Warbler in Northern Pacific Rainforest is projected to rise about 17% by 2029 — from 2.0 in 2024 to a central estimate of 2.3 (95% range 0.86–3.8). A 5-year backtest shows a typical error of ±26.8%, with 100% of held-out values landing inside the 95% band.

+17%Change by 2029
2.3Projected 2029 index
0.86–3.895% range
±26.8%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
20252.40.953.9
20262.40.933.9
20272.40.913.9
20282.40.883.8
20292.30.863.8

Routes In Northern Pacific Rainforest

Routes recording MacGillivray's Warbler in Northern Pacific Rainforest.
MccloudCALIFORNIA242021
Pilot CreekCALIFORNIA191996
Cool CampOREGON182013
LoraneOREGON182024
ClearwaterOREGON162021
Mt. AdamsWASHINGTON162024
Martins FyCALIFORNIA152009
CougarWASHINGTON132023
MolallaOREGON122024
Horse CreekCALIFORNIA112019
MontesandWASHINGTON112024
McchordWASHINGTON112015
HyderALASKA102009
OrleansCALIFORNIA102012
Warner Mtn.OREGON102024
RuchOREGON102023
Klickitat MtOREGON91996
Cedar FallsWASHINGTON92014
South Fork MtnCALIFORNIA82022
Blue RiverOREGON72024
CinderellaOREGON72024
Friday RidgeCALIFORNIA62024
PackwoodWASHINGTON62024
Junction CtyCALIFORNIA52012
Lonesome RdgCALIFORNIA52014

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