BirdAnalyst
Species · BCR 34 · BBS 2025 Release · 1966–2024

Western Bluebird In Sierra Madre Occidental

All regionsSierra Madre OccidentalForest birds

Western Bluebird in Sierra Madre Occidental has held roughly steady: down 4% on the route-weighted index since 1970.

-4%Since 1970
25Routes In Region
54Years

Notable Signals

No notable trend signals for Western Bluebird in Sierra Madre Occidental. See the full index history below.

Forecast

If the recent trend holds, Western Bluebird in Sierra Madre Occidental is projected to rise about 15% by 2029 — from 4.2 in 2024 to a central estimate of 4.8 (95% range 1.9–7.7). A 5-year backtest shows a typical error of ±51.3%, with 80% of held-out values landing inside the 95% band.

+15%Change by 2029
4.8Projected 2029 index
1.9–7.795% range
±51.3%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
20254.71.87.6
20264.71.87.6
20274.71.87.7
20284.81.97.7
20294.81.97.7

Routes In Sierra Madre Occidental

Routes recording Western Bluebird in Sierra Madre Occidental.
Happy JackARIZONA532024
Tonto Vill.ARIZONA202021
PinetopARIZONA182022
SprucedaleARIZONA182023
Aztec PeakARIZONA161978
ReserveNEW-MEXICO132023
WilliamsARIZONA122019
Forest LakesARIZONA122024
MaineARIZONA82024
FlagstaffARIZONA72022
Mormon LakeARIZONA71975
BlueARIZONA61991
Skull ValleyARIZONA62022
PatagoniaARIZONA41997
AlpineARIZONA42023
PrescottARIZONA22022
Peña BlancaARIZONA22001
Carr MtnARIZONA22019
Emory PassNEW-MEXICO22023
MagdalenaNEW-MEXICO22001
Clay SpringARIZONA12022
PortalARIZONA12024
Sunizona 2ARIZONA12002
RuckerARIZONA12009
Vicks PeakNEW-MEXICO12024

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