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

Mountain Chickadee In Great Basin

All regionsGreat BasinForest birds

Mountain Chickadee in Great Basin has edged down: down 17% on the route-weighted index since 1970.

-17%Since 1970
110Routes In Region
56Years

Notable Signals

No notable trend signals for Mountain Chickadee in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Mountain Chickadee in Great Basin is projected to rise about 21% by 2029 — from 2.9 in 2024 to a central estimate of 3.6 (95% range 1.7–5.4). A 5-year backtest shows a typical error of ±39%, with 100% of held-out values landing inside the 95% band.

+21%Change by 2029
3.6Projected 2029 index
1.7–5.495% range
±39%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
20253.51.75.4
20263.51.75.4
20273.61.75.4
20283.61.75.4
20293.61.75.4

Routes In Great Basin

Routes recording Mountain Chickadee in Great Basin.
PauninaOREGON622024
HackamoreCALIFORNIA602010
Medicine Mtn.CALIFORNIA482021
Bald Mtn.OREGON482024
Barnes ValOREGON451987
SistersOREGON452024
LakeviewOREGON382024
Crowder FlatCALIFORNIA312019
ChinchaloOREGON312024
MacdoelCALIFORNIA292019
BartleCALIFORNIA272021
TionestaCALIFORNIA262021
Davis LakeOREGON262024
Lapham Res.OREGON222024
BlyOREGON192001
Bly 2OREGON192024
PaisleyOREGON182024
Picture FlatOREGON142024
DeschutesOREGON132024
MazamaWASHINGTON112022
Wizard FallsOREGON102024
IngallsCALIFORNIA92001
Modoc PointOREGON82018
NubieberCALIFORNIA72018
JarbidgeNEVADA72015

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