BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Western Bluebird In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauForest birds

Western Bluebird in Southern Rockies / Colorado Plateau has declined: down 32% on the route-weighted index since 1970.

-32%Since 1970
134Routes In Region
56Years

Notable Signals

No notable trend signals for Western Bluebird in Southern Rockies / Colorado Plateau. See the full index history below.

Forecast

If the recent trend holds, Western Bluebird in Southern Rockies / Colorado Plateau is projected to rise about 105% by 2029 — from 0.58 in 2024 to a central estimate of 1.2 (95% range 0.17–2.2). A 5-year backtest shows a typical error of ±70.4%, with 100% of held-out values landing inside the 95% band.

+105%Change by 2029
1.2Projected 2029 index
0.17–2.295% range
±70.4%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
20251.20.172.2
20261.20.172.2
20271.20.172.2
20281.20.172.2
20291.20.172.2

Routes In Southern Rockies / Colorado Plateau

Routes recording Western Bluebird in Southern Rockies / Colorado Plateau.
SawmillARIZONA332014
The GapARIZONA271976
Mt. TaylorNEW-MEXICO212012
La Sal 2UTAH122006
Bryce CanyonUTAH122024
TsaileARIZONA112023
PecosNEW-MEXICO112017
VallecitosNEW-MEXICO92018
Cow SpringsARIZONA72022
MoffatCOLORADO71993
UncompahgreCOLORADO72022
Blackhead PkCOLORADO72021
Stinking Lk.NEW-MEXICO71999
Bluewater LakeNEW-MEXICO72021
Cheesman LkCOLORADO62018
TarryallCOLORADO62021
Pleasant ViewCOLORADO62021
NuclaCOLORADO62024
CebollaNEW-MEXICO62023
TorreonNEW-MEXICO62023
ClaunchNEW-MEXICO62000
DragertonUTAH61998
ShivwitzUTAH62015
CastletonCOLORADO51992
AnimasCOLORADO52003

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