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

American Robin In Sierra Madre Occidental

All regionsSierra Madre OccidentalForest birds

American Robin in Sierra Madre Occidental has risen sharply: up 74% on the route-weighted index since 1970.

+74%Since 1970
28Routes In Region
55Years

Notable Signals

long arc increasecomputed index

American Robin has risen sharply in Sierra Madre Occidental: up 74% on the route-weighted index since 1970.

Forecast

If the recent trend holds, American Robin in Sierra Madre Occidental is projected to rise about 63% by 2029 — from 6.9 in 2024 to a central estimate of 11 (95% range 5.4–17). A 5-year backtest shows a typical error of ±49.9%, with 100% of held-out values landing inside the 95% band.

+63%Change by 2029
11Projected 2029 index
5.4–1795% range
±49.9%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
2025115.117
2026115.217
2027115.217
2028115.317
2029115.417

Routes In Sierra Madre Occidental

Routes recording American Robin in Sierra Madre Occidental.
Happy JackARIZONA882024
AlpineARIZONA812023
SprucedaleARIZONA552023
BlueARIZONA341991
FlagstaffARIZONA262022
Mt. GrahamARIZONA252023
PinetopARIZONA232022
WilliamsARIZONA172019
ReserveNEW-MEXICO142023
Mormon LakeARIZONA121975
MaineARIZONA112024
Tonto Vill.ARIZONA102021
PrescottARIZONA92022
Aztec PeakARIZONA91978
Emory PassNEW-MEXICO92024
PortalARIZONA82024
SunizonaARIZONA61997
RuckerARIZONA52009
Skull ValleyARIZONA42024
PatagoniaARIZONA22024
Forest LakesARIZONA22024
CutterARIZONA12000
Clay SpringARIZONA12014
Carr MtnARIZONA12022
Sunizona 2ARIZONA12023

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