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

Mountain Bluebird In Sierra Madre Occidental

All regionsSierra Madre OccidentalForest birds

Mountain Bluebird in Sierra Madre Occidental has declined: down 26% on the route-weighted index since 1970.

-26%Since 1970
12Routes In Region
53Years

Notable Signals

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

Forecast

If the recent trend holds, Mountain Bluebird in Sierra Madre Occidental is projected to rise about 223% by 2029 — from 0.22 in 2024 to a central estimate of 0.72 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±65.2%, with 100% of held-out values landing inside the 95% band.

+223%Change by 2029
0.72Projected 2029 index
0.00–1.595% range
±65.2%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
20250.710.001.5
20260.720.001.5
20270.720.001.5
20280.720.001.5
20290.720.001.5

Routes In Sierra Madre Occidental

Routes recording Mountain Bluebird in Sierra Madre Occidental.
AlpineARIZONA122023
Vicks PeakNEW-MEXICO71999
SprucedaleARIZONA62023
PinetopARIZONA42022
Mormon LakeARIZONA31975
BlueARIZONA31991
WilliamsARIZONA32019
FlagstaffARIZONA22019
MaineARIZONA22024
Forest LakesARIZONA22023
Clay SpringARIZONA22024
Happy JackARIZONA12008

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