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

Mountain Chickadee In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Mountain Chickadee in Northern Pacific Rainforest has fallen sharply: down 53% on the route-weighted index since 1970.

-53%Since 1970
37Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Mountain Chickadee has fallen sharply in Northern Pacific Rainforest: down 53% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Mountain Chickadee in Northern Pacific Rainforest is projected to rise about 254% by 2029 — from 0.31 in 2024 to a central estimate of 1.1 (95% range 0.00–2.3). A 5-year backtest shows a typical error of ±205.6%, with 100% of held-out values landing inside the 95% band.

+254%Change by 2029
1.1Projected 2029 index
0.00–2.395% range
±205.6%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
20251.10.002.4
20261.10.002.4
20271.10.002.3
20281.10.002.3
20291.10.002.3

Routes In Northern Pacific Rainforest

Routes recording Mountain Chickadee in Northern Pacific Rainforest.
Mt ShastaCALIFORNIA262019
South Fork MtnCALIFORNIA262022
MccloudCALIFORNIA222021
Elk LakeOREGON192024
Pilot CreekCALIFORNIA161996
Hay ForkCALIFORNIA142017
CarrvilleCALIFORNIA121970
French GulchCALIFORNIA92011
Burnt RanchCALIFORNIA82016
DirigioCALIFORNIA72014
Ship Mtn.CALIFORNIA72016
ClearwaterOREGON42021
HullvilleCALIFORNIA32019
Junction CtyCALIFORNIA32011
Emigrant Lake 2OREGON32024
Mt RainierWASHINGTON32019
Shasta LakeCALIFORNIA21982
NavarroCALIFORNIA21973
OrleansCALIFORNIA21977
WhiskeytownCALIFORNIA22012
ShellrockOREGON21973
Cool CampOREGON22003
SelmaOREGON22023
ProspectOREGON22016
Offield MtnCALIFORNIA12011

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