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

Red Crossbill In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Red Crossbill in Sierra Madre Occidental has declined: down 48% on the route-weighted index since 1974.

-48%Since 1974
17Routes In Region
45Years

Notable Signals

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

Forecast

If the recent trend holds, Red Crossbill in Sierra Madre Occidental is projected to fall about 86% by 2029 — from 1.8 in 2024 to a central estimate of 0.26 (95% range 0.00–2.1). A 5-year backtest shows a typical error of ±21.7%, with 100% of held-out values landing inside the 95% band.

-86%Change by 2029
0.26Projected 2029 index
0.00–2.195% range
±21.7%Backtest error
19692029
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
20250.340.002.1
20260.320.002.1
20270.300.002.1
20280.280.002.1
20290.260.002.1

Routes In Sierra Madre Occidental

Routes recording Red Crossbill in Sierra Madre Occidental.
Happy JackARIZONA322024
MaineARIZONA142016
PrescottARIZONA102019
Aztec PeakARIZONA71977
ReserveNEW-MEXICO52023
AlpineARIZONA42022
Forest LakesARIZONA31997
BlueARIZONA21988
WilliamsARIZONA22018
PinetopARIZONA22022
SprucedaleARIZONA22015
RuckerARIZONA22008
Emory PassNEW-MEXICO21998
FlagstaffARIZONA12022
Mormon LakeARIZONA11975
Clay SpringARIZONA12012
PortalARIZONA12024

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