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

Montezuma Quail In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Montezuma Quail in Sierra Madre Occidental has declined: down 34% on the route-weighted index since 1978.

-34%Since 1978
13Routes In Region
43Years

Notable Signals

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

Forecast

If the recent trend holds, Montezuma Quail in Sierra Madre Occidental is projected to fall about 93% by 2029 — from 0.17 in 2024 to a central estimate of 0.01 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±84.1%, with 100% of held-out values landing inside the 95% band.

-93%Change by 2029
0.01Projected 2029 index
0.00–1.295% range
±84.1%Backtest error
19752029
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
20250.080.001.3
20260.060.001.3
20270.050.001.3
20280.030.001.2
20290.010.001.2

Routes In Sierra Madre Occidental

Routes recording Montezuma Quail in Sierra Madre Occidental.
Peña BlancaARIZONA42023
McnealARIZONA42015
PatagoniaARIZONA32023
SprucedaleARIZONA32023
PortalARIZONA32024
ReserveNEW-MEXICO32023
AmadoARIZONA22023
DragoonARIZONA21999
RuckerARIZONA22009
AlpineARIZONA12023
Vicks PeakNEW-MEXICO12018
Emory PassNEW-MEXICO12023
MagdalenaNEW-MEXICO12016

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