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

Greater Roadrunner In Sierra Madre Occidental

All regionsSierra Madre OccidentalArid-land birds

Greater Roadrunner in Sierra Madre Occidental has fallen sharply: down 50% on the route-weighted index since 1970.

-50%Since 1970
25Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Greater Roadrunner has fallen sharply in Sierra Madre Occidental: down 50% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Greater Roadrunner in Sierra Madre Occidental is projected to fall about 44% by 2029 — from 2.1 in 2024 to a central estimate of 1.1 (95% range 0.00–3.3). A 5-year backtest shows a typical error of ±39.3%, with 100% of held-out values landing inside the 95% band.

-44%Change by 2029
1.1Projected 2029 index
0.00–3.395% range
±39.3%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
20251.20.003.4
20261.20.003.4
20271.20.003.4
20281.20.003.3
20291.10.003.3

Routes In Sierra Madre Occidental

Routes recording Greater Roadrunner in Sierra Madre Occidental.
Skull ValleyARIZONA142024
RuckerARIZONA82009
SahuaritaARIZONA62024
Bartlett ResARIZONA52024
RedingtonARIZONA32023
PortalARIZONA32024
Sunizona 2ARIZONA32023
ReserveNEW-MEXICO32021
Emory PassNEW-MEXICO32024
PomereneARIZONA22024
SunizonaARIZONA21997
Vicks PeakNEW-MEXICO22023
MagdalenaNEW-MEXICO22024
PrescottARIZONA12015
San SimonARIZONA12023
Peña BlancaARIZONA12024
PatagoniaARIZONA12023
Forest LakesARIZONA12021
CutterARIZONA12014
AmadoARIZONA12023
McnealARIZONA12023
Clay SpringARIZONA12014
Carr MtnARIZONA12024
SprucedaleARIZONA12023
DragoonARIZONA12009

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